@article{TAM_1979_5_1_a13,
     author = {Apostol Poceski},
     title = {From deformation to mixed and hybrid formulation of the finite element method},
     journal = {Theoretical and applied mechanics},
     pages = {135 },
     publisher = {mathdoc},
     volume = {5},
     number = {1},
     year = {1979},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAM_1979_5_1_a13/}
}