Voir la notice de l'article provenant de la source Mathematicac Balkanica website
@article{MABA_1996_10_4_a9, author = {V. Buryskov and S. Burysek}, title = {On the {Spectrum} of the {Couple} of {Symmetric} {Homogeneous} {Operators}}, journal = {Mathematica balkanica}, pages = {407}, publisher = {mathdoc}, volume = {10}, number = {4}, year = {1996}, url = {http://geodesic.mathdoc.fr/item/MABA_1996_10_4_a9/} }
V. Buryskov; S. Burysek. On the Spectrum of the Couple of Symmetric Homogeneous Operators. Mathematica balkanica, Tome 10 (1996) no. 4, p. 407. http://geodesic.mathdoc.fr/item/MABA_1996_10_4_a9/