%0 Journal Article %A Straughan, Brian %T Conditional stability and symmetry in hydrodinamics and mathematical biology %J Portugaliae mathematica %D 1982 %P 251-260 %V 41 %N 1-4 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_1982__41_1-4_115498/ %G en %F PORMA_1982__41_1-4_115498