@article{GDZPPN001171917, title = {Collocation for Systems of Boundary Value Problems.}, journal = {Numerische Mathematik}, volume = {22}, year = {1974}, pages = {119-134}, zbl = {0279.65070}, url = {http://dml.mathdoc.fr/item/GDZPPN001171917} }
Russell, R.D. Collocation for Systems of Boundary Value Problems.. Numerische Mathematik, Tome 22 (1974) pp. 119-134. http://gdmltest.u-ga.fr/item/GDZPPN001171917/