@article{INTO_2018_147_a0,
     author = {M. V. Ignatyev and I. Penkov},
     title = {Ind-Varieties of {Generalized} {Flags:} {A} {Survey} of {Results}},
     journal = {Itogi nauki i tehniki. Sovremenna\^a matematika i e\"e prilo\v{z}eni\^a. Temati\v{c}eskie obzory},
     pages = {3--50},
     publisher = {mathdoc},
     volume = {147},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTO_2018_147_a0/}
}