Grinn-Gofroń , A., Lipiec , A., Rapiejko , P., Chłopek , K., Dorota, Winnicka , I., Małgorzata, Kalinowska , E., Beata and Wolski , T. 2008. Alternaria spores in the air of selected Polish cities in 2008. Alergoprofil. 4, 4 (Dec. 2008), 25-29.