R. Pfiefer
发表
Richard E. Pfiefer,
R. Pfiefer,
1989
.
Ezra A. Brown,
Frederick W. Luttmann,
W. Stromquist,
2009
.
Ezra A. Brown,
Frederick W. Luttmann,
W. Stromquist,
2009
.
Ezra A. Brown,
Frederick W. Luttmann,
W. Stromquist,
2016,
Am. Math. Mon..
Gerald A. Edgar,
Doug Hensley,
Douglas B. West,
2015,
Am. Math. Mon..
Ezra A. Brown,
Frederick W. Luttmann,
P. Bateman,
2008
.
Gerald A. Edgar,
Doug Hensley,
Douglas B. West,
2014,
Am. Math. Mon..