@article{701245,
     title = {Some recent results on duality and planarity},
     booktitle = {Abstracta. 9th Winter School on Abstract Analysis},
     series = {GDML\_Books},
     publisher = {Czechoslovak Academy of Sciences},
     address = {Praha},
     year = {1981},
     pages = {151-152},
     url = {http://dml.mathdoc.fr/item/701245}
}

Recski, András. Some recent results on duality and planarity, dans Abstracta. 9th Winter School on Abstract Analysis, GDML_Books,  (1981), pp. 151-152. http://gdmltest.u-ga.fr/item/701245/