Carta recebida por Hans Albert Meyer (Jean) enviada por [Harry] Messel, do Dublin Institute for Advanced Studies, solicitando cópia do artigo On the absorption of penetranting showers publicado na Physical Review (82,424,1951).
Harry Messel. A note on the development of the nucleon component of the cosmic radiation in air when ionization losses are accounted for. The Physical Review, v.83, nº.1, pp.26-30.
Lajos Jánossy e Harry Messel. Investigation into the higher moments of a nucleon cascade. Proceedings of the Royal Irish Academy, v.54, sec.A, nº.16, Dublin University Press Ltda, pp.245-262.
Leonie Jánossy e Harry Messel. On the calculation of average numbers for the electron-photon cascade. Proceedings of the Royal Irish Academy, v.54, sec.A, nº.15, Dublin University Press Ltda, pp.217-243.
Harry Messel, D. M. Ritson. On the development of the nucleon component of the cosmic radiation in air. Proceedings of the Physical Society, v.LXIII, sec.A, pp.1359-1365.
Harry Messel. On the fluctation of a nucleon cascade in homogeneous nuclear matter and calculation of average numbers. Proceedings of the Royal Irish Academy, v.54, sec.A, nº.8, Dublin University Press Ltda, pp.125-135.