@article{PIM_1977_N_S_22_36_a29,
     author = {M. Prvanovi\'c},
     title = {(F1, {F2)-} {And} {(F3,} {F4)-Connexions} {Of} {An} {Almost} {Complex} {And} {An} {Almost} {Product} {Space}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {223 },
     publisher = {mathdoc},
     volume = {_N_S_22},
     number = {36},
     year = {1977},
     url = {http://geodesic.mathdoc.fr/item/PIM_1977_N_S_22_36_a29/}
}