@article{MABA_2007_21_3-4_a15,
     author = {Ekaterina P. Mihaylova},
     title = {Open {Images} of {Metrizable} {Families}},
     journal = {Mathematica balkanica},
     pages = {407},
     publisher = {mathdoc},
     volume = {21},
     number = {3-4},
     year = {2007},
     url = {http://geodesic.mathdoc.fr/item/MABA_2007_21_3-4_a15/}
}