共 5 条
[1]
BERSTEL J, COMMUNICATION
[2]
DELUCA A, DISCRETE MATH
[3]
DUVAL JP, 1980, THESIS U ROUEN
[4]
Knuth D. E., 1977, SIAM Journal on Computing, V6, P323, DOI 10.1137/0206024
[5]
Lentin A., 1972, EQUATIONS MONOIDES L