USLB:10.4319/lo.1989.34.8.1410
USLB:10.4319/lo.1991.36.3.0455
USLB:10.4319/lo.1992.37.3.0630
USLB:10.4319/lo.1992.37.8.1691
USLB:10.4319/lo.1994.39.2.0365
USLB:10.4319/lo.1994.39.2.0374
USLB:10.4319/lo.1994.39.3.0702
USLB:10.4319/lo.1994.39.8.1917
USLB:10.4319/lom.2008.6.277
USLB:10.4319/lom.2014.12.651