@article{TIMM_2015_21_1_a3,
     author = {I. N. Belousov and A. A. Makhnev},
     title = {Strongly uniform extensions of dual 2-designs},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {35--45},
     publisher = {mathdoc},
     volume = {21},
     number = {1},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2015_21_1_a3/}
}