中国科学院数学与系统科学研究院期刊网
PARTIALLY OBSERVABLE MARKOV DECISION PROGRAMMING:FIRST PASSAGE PROBLEM
LIU DIFEN, LIU JIANYONG, LIU KE
Acta Mathematicae Applicatae Sinica . 1994, (1): 44 -58 .  DOI: 10.12387/C1994005