TY - JOUR AU - Stȩpniak, Czesław TI - Towards a notion of testability JO - Applications of Mathematics PY - 1992 SP - 249 EP - 255 VL - 37 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/AM.1992.104507/ DO - 10.21136/AM.1992.104507 LA - en ID - 10_21136_AM_1992_104507 ER -