... 201–207, 2004.5 A. Cabada, “The method of lower and upper solutions for second, third, fourth, and higher orderboundary value problems,” Journal of Mathematical Analysis and Applications, vol. ... uniqueness of solutions to three-pointboundary value problems,” Journal of Mathematical Analysis and Applications, vol. 167, no. 1, pp. 43–48,1992.17 M. Pei and S. K. Chang, Existence and uniqueness ... 1.3.73References1 A. R. Aftabizadeh, C. P. Gupta, and J M. Xu, Existence and uniqueness theorems for three-pointboundary value problems,” SIAM Journal on Mathematical Analysis, vol. 20, no....