@article{MABA_2003_17_1-2_a0,
     author = {G. Anastassiou},
     title = {On {Gruss} {Type} {Multivariate} {Integral} {Inequalities}},
     journal = {Mathematica balkanica},
     pages = {1},
     publisher = {mathdoc},
     volume = {17},
     number = {1-2},
     year = {2003},
     url = {http://geodesic.mathdoc.fr/item/MABA_2003_17_1-2_a0/}
}