@article{DM_1990_2_2_a10,
     author = {J. Hromkovi\v{c} and B. Shuster},
     title = {The relative complexities of two types of two-dimensional circuits made of functional elements},
     journal = {Diskretnaya Matematika},
     pages = {121--126},
     publisher = {mathdoc},
     volume = {2},
     number = {2},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_1990_2_2_a10/}
}