Voir la notice de l'article provenant de la source Mathematicac Balkanica website
@article{MABA_1991_5_2_a5, author = {D. P. Mishev}, title = {Oscillation of the {Solutions} of {Neutral} {Type} {Hyperbolic} {Differential} {Equations}}, journal = {Mathematica balkanica}, pages = {121}, publisher = {mathdoc}, volume = {5}, number = {2}, year = {1991}, url = {http://geodesic.mathdoc.fr/item/MABA_1991_5_2_a5/} }
D. P. Mishev. Oscillation of the Solutions of Neutral Type Hyperbolic Differential Equations. Mathematica balkanica, Tome 5 (1991) no. 2, p. 121. http://geodesic.mathdoc.fr/item/MABA_1991_5_2_a5/