@article{MABA_1988_2_2_a5,
     author = {T. I. Encheva and A. lu. Levin and D. L Vandev},
     title = {On {Computationally} {Implementable} {Variants} of the {Method} of {Centers} of {Gravity}},
     journal = {Mathematica balkanica},
     pages = {156},
     publisher = {mathdoc},
     volume = {2},
     number = {2},
     year = {1988},
     url = {http://geodesic.mathdoc.fr/item/MABA_1988_2_2_a5/}
}