Miranville, A., and A.C. Mureşan. “ The Uncentered Type Incremental Unknowns for a Singularly Perturbed Bilocal Problem”. Rev. Anal. Numér. Théor. Approx. 29, no. 2 (August 1, 2000): 161-171. Accessed November 29, 2021. https://ictp.acad.ro/jnaat/journal/article/view/2000-vol29-no2-art6.