@article{DA_2003_10_4_a2,
     author = {A. D. Korshunov},
     title = {The number of $k$-nonseparated families of subsets of an $n$-element set ($k$-nonseparated {Boolean} functions). {I.} {The} case of even $n$ and $k=2$},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {31--69},
     publisher = {mathdoc},
     volume = {10},
     number = {4},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_2003_10_4_a2/}
}