@article{GDZPPN002453185, title = {Two Machine Scheduling Problem when Passing Allowed.}, journal = {Metrika}, volume = {20}, year = {1973}, pages = {36-40}, zbl = {0252.90033}, url = {http://dml.mathdoc.fr/item/GDZPPN002453185} }
Bagga, P.C. Two Machine Scheduling Problem when Passing Allowed.. Metrika, Tome 20 (1973) pp. 36-40. http://gdmltest.u-ga.fr/item/GDZPPN002453185/