Studies on cytology and differentiation in Sciaridae: II. DNA redundancy in salivary gland cells of Hybosciara fragilis (Diptera, Sciaridae) - Cunha, Antonio Brito da; Pavan, Crodowaldo; Morgante, João Stenghel; Garrido, M. C. (Proceedings of an International Symposium on Nuclear Physiology and Differentation, 1969)