@article{MZM_1981_29_6_a12,
     author = {M. G. Tkachenko},
     title = {An example of a nonmetrizable bicompactum in which every weakly extended subspace is countable},
     journal = {Matemati\v{c}eskie zametki},
     pages = {917--921},
     publisher = {mathdoc},
     volume = {29},
     number = {6},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1981_29_6_a12/}
}