@article{RM_2005_60_1_a9,
     author = {O. N. Karpenkov},
     title = {Classification of three-dimensional multistorey completely empty convex marked pyramids},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {165--166},
     publisher = {mathdoc},
     volume = {60},
     number = {1},
     year = {2005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2005_60_1_a9/}
}