@misc{Schaeffer_Jakob_Christian_(1718-1790)_Die,
 author={Schaeffer, Jakob Christian (1718-1790)},
 howpublished={online},
 publisher={gedruckt und in Commission zu haben bey Emanuel Adam Weiss},
 language={ger},
 type={printed books 1501-1800},
 title={Die Armpolypen in den sussen Wassern um Regensburg},
 keywords={natural history, printed books 1501-1800},
}