@article{VMUMM_1989_5_a16,
     author = {Nguen Tkhan' Nam},
     title = {A problem with an oblique derivative for a second-order equation in a domain with edges},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {67--69},
     publisher = {mathdoc},
     number = {5},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1989_5_a16/}
}