@article{DM_1995_7_1_a1,
     author = {I. R. Khaverlik},
     title = {On the complexity of the realization of {Boolean} matrices with a connected boundary},
     journal = {Diskretnaya Matematika},
     pages = {19--51},
     publisher = {mathdoc},
     volume = {7},
     number = {1},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_1995_7_1_a1/}
}