BIB > 28, 38, 6937, 7870
BIB > 2097
BIB > 5271
BIB > 21, 1120, 82160
BIB > 10, 21, 356, 1857, 2004, 2020, 2024, 202 ...
BIB > 20841
BIB > 6546
BIB > 2357, 22126
BIB > 300, 2243
BIB > 9, 5875
BIB > 2073
BIB > 13, 2008, 200813