@article{articlec4047f97, title = {Spatial and temporal distribution of fecal coliforms, coliphages, moulds and yeasts in freshwater at the semi-arid tropic northeast region in Brazil (Paraíba state)}, author = {Ceballos, Beatriz Susana Ovruski de and Lima, Edeltrudes O. de and König, Annemarie and Martins, Maria Therezinha}, year = {1995}, journal = {Revista de Microbiologia} }