Levitan, I.S. Sargsjan
Sturm—Liouville and Dirac Operators - 1991 - Springer Netherlands 1991 - Mathematics and its Applications .
9789401137485
Mathematics and Statistics
Sturm—Liouville and Dirac Operators - 1991 - Springer Netherlands 1991 - Mathematics and its Applications .
9789401137485
Mathematics and Statistics