[1] Pachpatte B.G.: 
On a certain boundary value problem for third order differential equations. An.st.Univ.Iasi, XXXII, f.l, s.Ia, Mathematica, (1986), 55-61. 
MR 0893027 | 
Zbl 0619.34024[2] Stanӗk S.: Three-point boundary value problem of nonlinear secoпd order differential equation with parameter. (to appear).
[3] Stanӗk S.: Three-point boundary value problem of retarded functional differential equation of the second order with parameter. (to appear).
[4] Tineo A.: 
Existence of solutions for a class of boundary value problems for the equation x"= F(t,x,x ,x"). Comment. Math. Univ. Carolinae, 29, 2 (1988), 285-291. 
MR 0957397