@article{bwmeta1.element.bwnjournal-article-smv81i1p10bwm,
author = {Jerzy Sawa},
title = {The best constant in the Khintchine inequality for complex Steinhaus variables, the case p=1},
journal = {Studia Mathematica},
volume = {81},
year = {1985},
pages = {107-126},
zbl = {0612.60017},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-smv81i1p10bwm}
}
Sawa, Jerzy. The best constant in the Khintchine inequality for complex Steinhaus variables, the case p=1. Studia Mathematica, Tome 81 (1985) pp. 107-126. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-smv81i1p10bwm/