@article{NSJOM_1991_21_1a_12,
     author = {Hahn 

 S. and Juckelandt S.},
     title = {Zur approximation von 

 fixpunkten bei mengenwertigen oberhalbstetigen kompakten abbildungen},
     journal = {Novi Sad Journal of Mathematics},
     pages = {127-133},
     year = {1991},
     volume = {21},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1991_21_1a_12/}
}