APA:
Osuna, Octavio Páez, Chi, Rodolfo San Agustín (2012). The combinatorial (19 sub 4) configurations.
Ars mathematica contemporanea, volume 5, issue 2, str. 235-241.
URN:NBN:SI:DOC-E5STJJ3C from http://www.dlib.si
MLA:
Osuna, Octavio Páez, Chi, Rodolfo San Agustín. "The combinatorial (19 sub 4) configurations."
Ars mathematica contemporanea volume 5. issue 2 (2012) str. 235-241.
<http://www.dlib.si/?URN=URN:NBN:SI:DOC-E5STJJ3C>