@article{DM_2005_17_1_a7,
     author = {T. G. Petrosyan},
     title = {On the number of product-free sets in groups of even order},
     journal = {Diskretnaya Matematika},
     pages = {89--101},
     publisher = {mathdoc},
     volume = {17},
     number = {1},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2005_17_1_a7/}
}