@article{10_1017_S0017089512000018,
     author = {CHOIE, YOUNGJU and KOHNEN, WINFRIED},
     title = {SIGN {CHANGES} {OF} {FOURIER} {COEFFICIENTS} {OF} {ENTIRE} {MODULAR} {INTEGRALS}},
     journal = {Glasgow mathematical journal},
     pages = {355--358},
     year = {2012},
     volume = {54},
     number = {2},
     doi = {10.1017/S0017089512000018},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089512000018/}
}