BibTex format
@article{Kim:2002:10.1103/PhysRevA.65.032323,
author = {Kim, MS and Son, W and Buzek, V and Knight, PL},
doi = {10.1103/PhysRevA.65.032323},
journal = {PHYSICAL REVIEW A},
title = {Entanglement by a beam splitter: Nonclassicality as a prerequisite for entanglement},
url = {http://dx.doi.org/10.1103/PhysRevA.65.032323},
volume = {65},
year = {2002}
}