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1. Tanskanen, EI; Viljanen, A; Pulkkinen, TI; Pirjola, R; Hakkinen, L; Pulkkinen, A; Amm, O
   At substorm onset, 40% of AL comes from underground
   JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
   
   E.I. Tanskanen et al., "At substorm onset, 40% of AL comes from underground", J GEO R-S P, 106(A7), 2001, pp. 13119-13134
2. Nevanlinna, H; Tenhunen, P; Pirjola, R; Annanpalo, J; Pulkkinen, A
   Breakdown caused by a geomagnetically induced current in the Finnish telesystem in 1958
   JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
   
   H. Nevanlinna et al., "Breakdown caused by a geomagnetically induced current in the Finnish telesystem in 1958", J ATMOS S-P, 63(10), 2001, pp. 1099-1103
3. Uspensky, MV; Koustov, AV; Eglitis, P; Huuskonen, A; Milans, SE; Pulkkinen, T; Pirjola, R
   CUTLASS HF radar observations of high-velocity E-region echoes
   ANNALES GEOPHYSICAE
   
   M.V. Uspensky et al., "CUTLASS HF radar observations of high-velocity E-region echoes", ANN GEOPHYS, 19(4), 2001, pp. 411-424
4. Pirjola, R; Viljanen, A; Pulkkinen, A; Amm, O
   Space weather risk in power systems and pipelines
   PHYSICS AND CHEMISTRY OF THE EARTH PART C-SOLAR-TERRESTIAL AND PLANETARY SCIENCE
   
   R. Pirjola et al., "Space weather risk in power systems and pipelines", PHYS CH P C, 25(4), 2000, pp. 333-337
5. Boteler, DH; Pirjola, R; Trichtchenko, L
   On calculating the electric and magnetic fields produced in technological systems at the Earth's surface by a "wide" electrojet
   JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
   
   D.H. Boteler et al., "On calculating the electric and magnetic fields produced in technological systems at the Earth's surface by a "wide" electrojet", J ATMOS S-P, 62(14), 2000, pp. 1311-1315
6. Bolduc, L; Langlois, P; Boteler, D; Pirjola, R
   A study of geoelectromagnetic disturbances in Quebec, 2. Detailed analysisof a large event
   IEEE TRANSACTIONS ON POWER DELIVERY
   
   L. Bolduc et al., "A study of geoelectromagnetic disturbances in Quebec, 2. Detailed analysisof a large event", IEEE POW D, 15(1), 2000, pp. 272-278
7. Pirjola, R
   Geomagnetically induced currents during magnetic storms
   IEEE TRANSACTIONS ON PLASMA SCIENCE
   
   R. Pirjola, "Geomagnetically induced currents during magnetic storms", IEEE PLAS S, 28(6), 2000, pp. 1867-1873
8. Lindell, IV; Hanninen, JJ; Pirjola, R
   Wait's complex-image principle generalized to arbitrary sources
   IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
   
   I.V. Lindell et al., "Wait's complex-image principle generalized to arbitrary sources", IEEE ANTENN, 48(10), 2000, pp. 1618-1624
9. Viljanen, A; Amm, O; Pirjola, R
   Modeling geomagnetically induced currents during different ionospheric situations
   JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
   
   A. Viljanen et al., "Modeling geomagnetically induced currents during different ionospheric situations", J GEO R-S P, 104(A12), 1999, pp. 28059-28071
10. Viljanen, A; Pirjola, R; Amm, O
    Magnetotelluric source effect due to 3D ionospheric current systems using the complex image method for 1D conductivity structures
    EARTH PLANETS AND SPACE
    
    A. Viljanen et al., "Magnetotelluric source effect due to 3D ionospheric current systems using the complex image method for 1D conductivity structures", EARTH PL SP, 51(9), 1999, pp. 933-945
11. Pirjola, R; Viljanen, A; Boteler, D
    Series expansions for the electric and magnetic fields produced by a line or sheet current source above a layered Earth
    RADIO SCIENCE
    
    R. Pirjola et al., "Series expansions for the electric and magnetic fields produced by a line or sheet current source above a layered Earth", RADIO SCI, 34(2), 1999, pp. 269-280
12. PIRJOLA R; VILJANEN A
    COMPLEX IMAGE METHOD FOR CALCULATING ELECTRIC AND MAGNETIC-FIELDS PRODUCED BY AN AURORAL ELECTROJET OF FINITE-LENGTH
    Annales geophysicae
    
    R. Pirjola e A. Viljanen, "COMPLEX IMAGE METHOD FOR CALCULATING ELECTRIC AND MAGNETIC-FIELDS PRODUCED BY AN AURORAL ELECTROJET OF FINITE-LENGTH", Annales geophysicae, 16(11), 1998, pp. 1434-1444
13. BOLDUC L; LANGLOIS P; BOTELER D; PIRJOLA R
    STUDY OF GEOELECTROMAGNETIC DISTURBANCES IN QUEBEC, 1 - GENERAL RESULTS
    IEEE transactions on power delivery
    
    L. Bolduc et al., "STUDY OF GEOELECTROMAGNETIC DISTURBANCES IN QUEBEC, 1 - GENERAL RESULTS", IEEE transactions on power delivery, 13(4), 1998, pp. 1251-1256
14. LINKIN V; HARRI AM; LIPATOV A; BELOSTOTSKAJA K; DERBUNOVICH B; EKONOMOV A; KHLOUSTOVA L; KREMNEV R; MAKAROV V; MARTINOV B; NENAROKOV D; PROSTOV M; PUSTOVALOV A; SHUSTKO G; JARVINEN I; KIVILINNA H; KORPELA S; KUMPULAINEN K; LEHTO A; PELLINEN R; PIRJOLA R; RIIHELA P; SALMINEN A; SCHMIDT W; SIILI T; BLAMONT J; CARPENTIER T; DEBUS A; HUA CT; KARCZEWSKI JF; LAPLACE H; LEVACHER P; LOGNONNE P; MALIQUE C; MENVIELLE M; MOULI G; POMMEREAU JP; QUOTB K; RUNAVOT J; VIENNE D; GRUNTHANER F; KUHNKE F; MUSMANN G; RIEDER R; WANKE H; ECONOMOU T; HERRING M; LANE A; MCKAY CP
    A SOPHISTICATED LANDER FOR SCIENTIFIC EXPLORATION OF MARS - SCIENTIFIC OBJECTIVES AND IMPLEMENTATION OF THE MARS-96 SMALL STATION
    Planetary and space science
    
    V. Linkin et al., "A SOPHISTICATED LANDER FOR SCIENTIFIC EXPLORATION OF MARS - SCIENTIFIC OBJECTIVES AND IMPLEMENTATION OF THE MARS-96 SMALL STATION", Planetary and space science, 46(6-7), 1998, pp. 717-737
15. HARRI AM; LINKIN V; POLKKO J; MAROV M; POMMEREAU JP; LIPATOV A; SIILI T; MANUILOV K; LEBEDEV V; LEHTO A; PELLINEN R; PIRJOLA R; CARPENTIER T; MALIQUE C; MAKAROV V; KHLOUSTOVA L; ESPOSITO L; MAKI J; LAWRENCE G; LYSTSEV V
    METEOROLOGICAL OBSERVATIONS ON MARTIAN SURFACE - MET-PACKAGES OF MARS-96 SMALL STATIONS AND PENETRATORS
    Planetary and space science
    
    A.M. Harri et al., "METEOROLOGICAL OBSERVATIONS ON MARTIAN SURFACE - MET-PACKAGES OF MARS-96 SMALL STATIONS AND PENETRATORS", Planetary and space science, 46(6-7), 1998, pp. 779-793
16. Harri, AM; Fagerstrom, B; Lehto, A; Leppelmeier, GW; Makinen, T; Pirjola, R; Siikonen, T; Siili, T
    Scientific objectives and implementation of the Pressure Profile Instrument (PPI/HASI) for the Huygens spacecraft
    PLANETARY AND SPACE SCIENCE
    
    A.M. Harri et al., "Scientific objectives and implementation of the Pressure Profile Instrument (PPI/HASI) for the Huygens spacecraft", PLANET SPAC, 46(9-10), 1998, pp. 1383-1392
17. VILJANEN A; PIRJOLA R; MAKINEN T
    GEOMAGNETICALLY INDUCED CURRENTS - PRESENT KNOWLEDGE AND FUTURE-RESEARCH - DISCUSSION
    IEEE transactions on power delivery
    
    A. Viljanen et al., "GEOMAGNETICALLY INDUCED CURRENTS - PRESENT KNOWLEDGE AND FUTURE-RESEARCH - DISCUSSION", IEEE transactions on power delivery, 9(1), 1994, pp. 57-58
18. VILJANEN A; PIRJOLA R
    GEOMAGNETICALLY INDUCED CURRENTS IN THE FINNISH HIGH-VOLTAGE POWER-SYSTEM - A GEOPHYSICAL REVIEW
    Surveys in geophysics
    
    A. Viljanen e R. Pirjola, "GEOMAGNETICALLY INDUCED CURRENTS IN THE FINNISH HIGH-VOLTAGE POWER-SYSTEM - A GEOPHYSICAL REVIEW", Surveys in geophysics, 15(4), 1994, pp. 383-408
19. VILJANEN A; PIRJOLA R
    ON THE POSSIBILITY OF PERFORMING STUDIES ON THE GEOELECTRIC FIELD ANDIONOSPHERIC CURRENTS USING INDUCTION IN POWER-SYSTEMS
    Journal of atmospheric and terrestrial physics
    
    A. Viljanen e R. Pirjola, "ON THE POSSIBILITY OF PERFORMING STUDIES ON THE GEOELECTRIC FIELD ANDIONOSPHERIC CURRENTS USING INDUCTION IN POWER-SYSTEMS", Journal of atmospheric and terrestrial physics, 56(11), 1994, pp. 1483-1491
20. VILJANEN A; PIRJOLA R; HAKKINEN L
    AN ATTEMPT TO REDUCE INDUCTION SOURCE EFFECTS AT HIGH-LATITUDES
    Journal of Geomagnetism and Geoelectricity
    
    A. Viljanen et al., "AN ATTEMPT TO REDUCE INDUCTION SOURCE EFFECTS AT HIGH-LATITUDES", Journal of Geomagnetism and Geoelectricity, 45(9), 1993, pp. 817-831