@article{CMUC_2002_43_4_a5,
     author = {Arhangel'skii, A. V. and Buzyakova, R. Z.},
     title = {Addition theorems and $D$-spaces},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {653--663},
     year = {2002},
     volume = {43},
     number = {4},
     mrnumber = {2045787},
     zbl = {1090.54017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_2002_43_4_a5/}
}