@article{NSJOM_2002_32_1a_7,
     author = {M. 

 Grulovi\'c},
     title = {Reduced 

 products of infinite forcing systems},
     journal = {Novi Sad Journal of Mathematics},
     pages = {93-100},
     year = {2002},
     volume = {32},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_2002_32_1a_7/}
}