参考文献

Jaouhari, Rabih; Maillard, Bernard; Filliatre, Claude; Villenave, Jean-Jacques Synthesis, 1982 , # 9 p. 760 - 763 Title/Abstract Full Text Show Details Jaouhari, Rabin; Filliatre, Claude; Maillard, Bernard; Villenave, Jean-Jacques Synthetic Communications, 1983 , vol. 13, # 5 p. 361 - 366