Fine and ultrafine particles emitted from laser printers as indoor air contaminants in German offices.Published in:Environmental Science & Pollution Research, 2012, v. 19, n. 9, p. 3840, doi. 10.1007/s11356-011-0647-5By:Tang, Tao;Hurraß, Julia;Gminski, Richard;Mersch-Sundermann, VolkerPublication type:Article