@misc{Ray_William_O._Some_1981,
 author={Ray, William O. and Cramer, W. J.},
 volume={29},
 editor={Polska Akademia Nauk.},
 editor={Państwowe Wydawnictwo Naukowe (1951–1992)},
 number={11-12},
 copyright={Rights Reserved - Restricted Access},
 address={Varsovie},
 howpublished={online},
 year={1981},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={eng},
 title={Some remarks on the Leray-Schauder boundary condition},
 type={Text},
}