@article{TAM_1992_18_1_a4,
     author = {Katica  and Stevanovi\'c and  Hedrih and Lj. Peri\'c},
     title = {Application of the complex variable function to crack problem in the piezoelectric material},
     journal = {Theoretical and applied mechanics},
     pages = {41 },
     publisher = {mathdoc},
     volume = {18},
     number = {1},
     year = {1992},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAM_1992_18_1_a4/}
}