1. Islam SU, Aziz I, Sarler B (2010) The numerical solution of second-order boundary-value problems by collocation method with the Haar wavelets. Math Comput Model 52:1577–1590
2. Ray SS (2012) On Haar wavelet operational matrix of general order and its application for the numerical solution of fractional Bagley Torvik equation. Appl Math Comput 218:5239–5524
3. Ramadan MK, Lashien IF, Zahra WK (2007) Polynomial and non-polynomial spline approaches to the numerical solution of second order boundary value problems. Appl Math Comput 184:476–484
4. Liu LB, Liu HW, Chen Y (2011) Polynomial spline approach for solving second order boundary value problems with Neumann conditions. Appl Math Comput 217:6872–6882
5. Lepik U (2014) Haar wavelets with applications. Springer, Berlin