Soika, Grażyna, and Marcin Kozak. 2011. “Problems With the Taxonomy of Phytoptus Tetratrichus Nalepa 1890 (Acari: Eriophyoidea) Inhabiting Tilia Spp.: Analysis Based on Morphological Variation Among Individuals”. Zootaxa 2988 (1). Auckland, New Zealand:37–52. https://doi.org/10.11646/zootaxa.2988.1.3.