Branching out of periodic solutions of non-linear oscillation equations.

[1] BIEBERBACH BL, 1923, THEORIE DIFFERENTIAL, V1

[2] Iglisch R, 1931, J REINE ANGEW MATH, V164, P151

[3] Real solution field of elliptical differential equation - Delta u=F(u) and non-linear integral equations [J]. MATHEMATISCHE ANNALEN, 1929, 101 : 98 - 119

[4] IGLISCH R, Z ANGEW MATH MECH

[5] IGLISCH ZBR, 1935, MONATSCH MATH PHYS, V72, P7

[6] IGLISCH ZBR, 1930, MONATSH MATH PHYS, V37, P325

[7] IGLISCH ZBR, 1932, MONATSH MATH PHYS, V39, P173

[8] KRYLOFF ZBN, 1934, MONOGR ACAD SCI UKRA, V4, P1

[9] KRYLOFF ZBN, 1934, MONOGR ACAD SCI UKRA, V8, P1

[10] MANDELSTAM ZBL, 1931, Z PHYS, V73, P223

[1] BIEBERBACH BL, 1923, THEORIE DIFFERENTIAL, V1

[2] Iglisch R, 1931, J REINE ANGEW MATH, V164, P151

[3] Real solution field of elliptical differential equation - Delta u=F(u) and non-linear integral equations [J]. MATHEMATISCHE ANNALEN, 1929, 101 : 98 - 119

[4] IGLISCH R, Z ANGEW MATH MECH

[5] IGLISCH ZBR, 1935, MONATSCH MATH PHYS, V72, P7

[6] IGLISCH ZBR, 1930, MONATSH MATH PHYS, V37, P325

[7] IGLISCH ZBR, 1932, MONATSH MATH PHYS, V39, P173

[8] KRYLOFF ZBN, 1934, MONOGR ACAD SCI UKRA, V4, P1

[9] KRYLOFF ZBN, 1934, MONOGR ACAD SCI UKRA, V8, P1

[10] MANDELSTAM ZBL, 1931, Z PHYS, V73, P223