APA:
Gamrot, Wojciech (2008). On covariance estimation when nonrespondents are subsampled.
Metodološki zvezki, volume 5, issue 2, str. 95-111.
URN:NBN:SI:DOC-NGVTSTMN from http://www.dlib.si
MLA:
Gamrot, Wojciech. "On covariance estimation when nonrespondents are subsampled."
Metodološki zvezki volume 5. issue 2 (2008) str. 95-111.
<http://www.dlib.si/?URN=URN:NBN:SI:DOC-NGVTSTMN>