On a function, which is a special case of Meijer’s $G$-function
Compositio Mathematica, Volume 15 (1962-1964), p. 34-63
@article{CM_1962-1964__15__34_0,
author = {Boersma, J.},
title = {On a function, which is a special case of Meijer's $G$-function},
journal = {Compositio Mathematica},
publisher = {Kraus Reprint},
volume = {15},
year = {1962-1964},
pages = {34-63},
zbl = {0100.06505},
mrnumber = {132847},
language = {en},
url = {http://www.numdam.org/item/CM_1962-1964__15__34_0}
}

Boersma, J. On a function, which is a special case of Meijer’s $G$-function. Compositio Mathematica, Volume 15 (1962-1964) pp. 34-63. http://www.numdam.org/item/CM_1962-1964__15__34_0/