Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MOMA_1976__81_177750, author = {W.T. Patula and T.A. Burton}, title = {Limit {Circle} {Results} for {Second} {Order} {Equations.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {185--194}, publisher = {mathdoc}, volume = {81}, year = {1976}, zbl = {0339.34028}, url = {http://geodesic.mathdoc.fr/item/MOMA_1976__81_177750/} }
W.T. Patula; T.A. Burton. Limit Circle Results for Second Order Equations.. Monatshefte für Mathematik, Tome 81 (1976), pp. 185-194. http://geodesic.mathdoc.fr/item/MOMA_1976__81_177750/