@article{700696,
     title = {Preface},
     booktitle = {General topology and its relations to modern analysis and algebra IV},
     series = {GDML\_Books},
     publisher = {Society of Czechoslovak Mathematicians and Physicist},
     address = {Praha},
     year = {1977},
     pages = {[5]-[5]},
     url = {http://dml.mathdoc.fr/item/700696}
}

Novák, J. Preface, dans General topology and its relations to modern analysis and algebra IV, GDML_Books,  (1977), p. [5]. http://gdmltest.u-ga.fr/item/700696/