System of differential equations with unstable turning point and multiple element of spectrum of degenerate operator.
Došlá, Z., Kuben, J.
Vosmanský, J. (eds.):
Proceedings of Equadiff 9,
Conference on Differential Equations and Their Applications, Brno, August 25-29, 1997.
[Part 3] Papers.
Masaryk University, Brno, 1998.