TY - JOUR AU - Kyncl, Jan AU - Marek, Ivo TI - Relaxation lengths and non-negative solutions in neutron transport JO - Applications of Mathematics PY - 1977 SP - 1 EP - 13 VL - 22 IS - 1 PB - mathdoc UR - https://geodesic-test.mathdoc.fr/articles/10.21136/AM.1977.103674/ DO - 10.21136/AM.1977.103674 LA - en ID - 10_21136_AM_1977_103674 ER -