CNRE publications https://orfeo.belnet.be/handle/internal/7946 2026-05-07T04:53:36Z 2026-05-07T04:53:36Z Portrait de Sydney Chapman Nicolet, M. https://orfeo.belnet.be/handle/internal/13420 2024-08-22T13:12:14Z Portrait de Sydney Chapman Nicolet, M. Photochimie aéronomique Nicolet, M. https://orfeo.belnet.be/handle/internal/13419 2024-08-22T13:12:38Z Photochimie aéronomique Nicolet, M. The aeronomic problem of neutral helium and hydrogen Nicolet, M. Kockarts, G. https://orfeo.belnet.be/handle/internal/13410 2024-08-21T06:04:07Z The aeronomic problem of neutral helium and hydrogen Nicolet, M.; Kockarts, G. Theories on electron production an recombination in the D and E layers Nicolet, M. https://orfeo.belnet.be/handle/internal/13409 2024-08-21T06:06:57Z Theories on electron production an recombination in the D and E layers Nicolet, M.