I.  Schmitt, Otte, J., Parnmen, S., Sadowska-De?, A., Luecking, R., and Lumbsch, T., ?A new circumscription of the genus Varicellaria (Pertusariales, Ascomycota)?, MycoKeys, vol. 4, pp. 23-36, 2012.

G.  Singh, Divakar, P. K., Dal Grande, F., Otte, J., Parnmen, S., Wedin, M., Crespo, A., Lumbsch, H. T., and Schmitt, I., ?The sister-group relationships of the largest family of lichenized fungi, Parmeliaceae (Lecanorales, Ascomycota)?, Fungal Biology, vol. 117, pp. 715-721, 2013.