Sy D. Friedman
发表
Chitat Chong,
Sy D. Friedman,
C. Chong,
1983,
Ann. Pure Appl. Log..
Sy D. Friedman,
2010
.
Sy D. Friedman,
2000
.
Sy D. Friedman,
Boban Velickovic,
1997,
Ann. Pure Appl. Log..