@article{UMJ_2022_8_1_a9,
     author = {Olga A. Tilzo},
     title = {Monopolistic competition model with entrance fee},
     journal = {Ural mathematical journal},
     pages = {117--127},
     publisher = {mathdoc},
     volume = {8},
     number = {1},
     year = {2022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UMJ_2022_8_1_a9/}
}