TY - RPRT TI - Time-discrete stochastic processes in arbitrary sets, with applications to processes with absorbing regions and to the problem of loops in mark off chains AU - van Dantzig, D PY - 1952 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS report ; 1794 DO - 10.6028/NBS.RPT.1794 ER -