@article {cite-key,
	title = {Mouse mammary tumor virus expression and mammary tumor development.},
	journal = {Curr Top Microbiol Immunol},
	volume = {106},
	year = {1983},
	pages = {57{\textendash}78},
	issn = {0070-217X (Print); 0070-217X (Linking)},
	author = {Michalides, R and van Ooyen, A and Nusse, R}
}
