@article{1077375777,
author = {Biesterfeldt, Jr., H. J.},
title = {Properties of solution-preserving operators},
journal = {Duke Math. J.},
volume = {32},
number = {1},
year = {1965},
pages = { 285-289},
language = {en},
url = {http://dml.mathdoc.fr/item/1077375777}
}
Biesterfeldt, Jr., H. J. Properties of solution-preserving operators. Duke Math. J., Tome 32 (1965) no. 1, pp. 285-289. http://gdmltest.u-ga.fr/item/1077375777/