@article{RM_1980_35_3_a1,
     author = {I. Bandlov and V. I. Ponomarev},
     title = {Cardinal invariants of tightness type absolutes of spaces and continuous maps},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {25--33},
     publisher = {mathdoc},
     volume = {35},
     number = {3},
     year = {1980},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1980_35_3_a1/}
}