中国科学院数学与系统科学研究院期刊网
Subalgebras of R_0-Algebra [0,1] and Generalized Tautology
Long Chun WANG,Guo Jun WANG
Acta Mathematica Sinica, Chinese Series . 2004, (3): 521 -526 .  DOI: 10.12386/A2004sxxb0066