@article{Deundyak 2014fredholm,
author={Deundyak , V.. and Romanenko, E..},
title={Fredholm property of composite two-dimensional integral operators with homogeneous singular-type kernels in Lp space},
journal={Vestnik of Don State Technical University},
publisher={Don state technical University},
year={2014},
pages={22-33},
volume={14},
issue={1},
}