@article{TIMM_2010_16_5_a27,
     author = {T. A. Burton},
     title = {Six integral equations and a~flexible {Liapunov} functional},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {241--252},
     year = {2010},
     volume = {16},
     number = {5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2010_16_5_a27/}
}