Pękacka-Falkowska, K. (2020). Nathanael Jacob Gerlach and Christian Gabriel Fischer in the Netherlands: A forgotten source for the history of medicine and natural history in the United Provinces of the late 20s of the18th century – part I. Modern medicine, 2020, 161-210. doi: https://doi.org/10.4467/12311960MN.20.016.13358