TY - RPRT TI - Evolutionary processes in influenza viruses: divergence, rapid evolution, and stasis. AU - O T Gorman AU - W J Bean AU - R G Webster PY - 1992 DO - 10.1007/978-3-642-77011-1_6 UR - https://pubmed.ncbi.nlm.nih.gov/1600756/ ID - 1600756 ER -