PT Journal AU Heikkila, P Salmi, T Kotimaa, M TI Identification and counting of fungal spores by scanning electron microscopy. SO Scandinavian Journal of Work, Environment & Health PD VL PY 1988 BP 66 EP 67 IS 1 WP https://www.sjweh.fi/show_abstract.php?abstract_id=1971 SN 0355-3140 ER