G.O., Armand, L., Barcena, M. A., Cantzler, H., Crosta, X., Esper, O., Jordan, R. W., Kauer, G., Klaas, C., Kloster, M., Leventer, A., Pike, J. and Rigual Hernández, A.S. (2018). Quantitative comparison [...] SHERPA - Shape Recognition, Processing and Analysis SHERPA is a software tool developed by Michael Kloster implementing a highly customizable image processing workflow for the identification and quantification [...] comparison of taxa and taxon concepts in the diatom genus Fragilariopsis : a case study on using slide scanning, multiexpert image annotation, and image analysis in taxonomy. Journal of Phycology 54: 703-719