BibTex format
@article{Penkova:2002,
author = {Penkova, A and Chayen, NE and Saridakis, E and Nanev, CN},
journal = {Acta Crystallographica},
pages = {1606--1610},
title = {Protein crystals in a wide continuous supersaturation gradient},
volume = {D 58},
year = {2002}
}