@article{VMUMM_1992_3_a18,
     author = {O. O. Olaru},
     title = {On the solution of heat conduction equation outside two contacting spheres},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {73--76},
     publisher = {mathdoc},
     number = {3},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1992_3_a18/}
}