@article{700083,
     title = {A model for phenomena of instability},
     booktitle = {Proceedings of Equadiff III},
     series = {GDML\_Books},
     publisher = {Univ. J. E. Purkyn\v e - P\v r\'\i rodov\v edeck\'a fakulta},
     address = {Brno},
     year = {1973},
     pages = {217-224},
     mrnumber = {MR0355379},
     zbl = {0352.76035},
     url = {http://dml.mathdoc.fr/item/700083}
}

Capriz, G. A model for phenomena of instability, dans Proceedings of Equadiff III, GDML_Books,  (1973), pp. 217-224. http://gdmltest.u-ga.fr/item/700083/