APA:
Rosenfeld, Moshe (2008). Some of my favorite "lesser known" problems.
Ars mathematica contemporanea, letnik 1, številka 2, str. 137-143.
URN:NBN:SI:DOC-LP3OQC0U from http://www.dlib.si
MLA:
Rosenfeld, Moshe. "Some of my favorite "lesser known" problems."
Ars mathematica contemporanea letnik 1. številka 2 (2008) str. 137-143.
<http://www.dlib.si/?URN=URN:NBN:SI:DOC-LP3OQC0U>