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@article{FAA_2002_36_3_a10, author = {A. Yu. Konstantinov}, title = {On the {Essential} {Spectrum} of a {Class} of {Matrix} {Differential} {Operators}}, journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a}, pages = {76--78}, publisher = {mathdoc}, volume = {36}, number = {3}, year = {2002}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/FAA_2002_36_3_a10/} }
A. Yu. Konstantinov. On the Essential Spectrum of a Class of Matrix Differential Operators. Funkcionalʹnyj analiz i ego priloženiâ, Tome 36 (2002) no. 3, pp. 76-78. http://geodesic.mathdoc.fr/item/FAA_2002_36_3_a10/