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.

G.  Singh, Dal Grande, F., Divakar, P. K., Otte, J., Leavitt, S. D., Szczepanska, K., Crespo, A., Rico, V. J., Aptroot, A., Cáceres, M. Eda Silva, Lumbsch, H. T., and Schmitt, I., ?Coalescent-based species delimitation approach uncovers high cryptic diversity in the cosmopolitan lichen-forming fungal genus Protoparmelia (Lecanorales, Ascomycota)?, PLOS ONE, vol. 10, no. 5, p. e0124625, 2015.

P. K.  Divakar, Crespo, A., Kraichak, E., Leavitt, S. D., Singh, G., Schmitt, I., and Lumbsch, H. T., ?Using a temporal phylogenetic method to harmonize family- and genus-level classification in the largest clade of lichen-forming fungi?, Fungal Diversity, vol. 84, pp. 101-117, 2017.