@article{UFA_2022_14_4_a1,
     author = {A. O. Bagapsh and K. Yu. Fedorovskiy},
     title = {On energy functionals for second order elliptic systems with constant coefficients},
     journal = {Ufa mathematical journal},
     pages = {14--25},
     publisher = {mathdoc},
     volume = {14},
     number = {4},
     year = {2022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UFA_2022_14_4_a1/}
}