EPA:10.4028/www.scientific.net/AMR.255-260.2718 EPA:10.4028/www.scientific.net/KEM.521.1 EPA:10.4028/www.scientific.net/KEM.521.113 EPA:10.4028/www.scientific.net/KEM.521.153 EPA:10.4028/www.scientific.net/KEM.521.163