@article{IVM_1980_9_a7,
     author = {B. P. Tanana},
     title = {Projections of compact semilattices},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {32--40},
     publisher = {mathdoc},
     number = {9},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1980_9_a7/}
}