@article{10_4064_cm_39_2_253_261,
     author = {Joachim N. Grispolakis},
     title = {On a problem of {Lelek} concerning open mappings},
     journal = {Colloquium Mathematicum},
     pages = {253--261},
     publisher = {mathdoc},
     volume = {39},
     number = {2},
     year = {1978},
     doi = {10.4064/cm-39-2-253-261},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-39-2-253-261/}
}