

@article {11121,
	title = {Evaluation of a sanitation programme using eggs of Ascaris lumbricoides in household yard soils as indicators},
	journal = {Tropical Medicine and Hygiene},
	volume = {92},
	year = {1989},
	pages = {10-16},
	author = {Muller, M. and Sanchez, R.M. and Suswillo, R.R.}
}
