共 21 条
- [3] SECONDARY ELECTRONS AND PHOTONS IN UPPER ATMOSPHERE [J]. JOURNAL OF GEOPHYSICAL RESEARCH, 1971, 76 (19): : 4291 - +
- [5] HIGH-ENERGY GAMMA-RADIATION FROM REGION OF CYGNUS-CASSIOPEIA [J]. NATURE-PHYSICAL SCIENCE, 1972, 235 (59): : 128 - &
- [6] OBSERVATION OF HIGH-ENERGY COSMIC GAMMA RAYS [J]. ASTROPHYSICAL JOURNAL, 1968, 153 (3P2) : L203 - +
- [7] DAHLBACKA GH, 1972, THESIS U MINNESOTA