@article{Lara1998,
	title = {General spin Ising model with diluted and random crystal field in
	the pair approximation},
	author = {D. Pe{\~n}a Lara and J. A. Plascak},
	day = {15},
	journal = {Physica A: Statistical and Theoretical Physics},
	month = {Nov},
	number = {3-4},
	pages = {443--454},
	url = {http://www.sciencedirect.com/science/article/B6TVG-3V8N1V6-K/1/c7fbd4c374245d89ec3a231f72ecfd81},
	volume = {260},
	year = {1998},
	biburl = {http://www.bibsonomy.org/bibtex/2472973430cbb4c9d64b8958ae72c281e/smicha},
	description = {Physica A},
	keywords = {Ising model }
}