@article{EXMATH_1989__4_2_38295,
     author = {W. Okrasinski},
     title = {Nonlinear {Volterra} equations and physical applications. {[Appendix:} {On} an extension of {Gripenberg's} condition].},
     journal = {Extracta Mathematicae},
     pages = {51},
     publisher = {mathdoc},
     volume = {4},
     number = {2},
     year = {1989},
     mrnumber = {MR1054984},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/EXMATH_1989__4_2_38295/}
}