@article {37641,
	title = {Percy Julian: Synthesis of Physostigmine},
	journal = {National Historic Chemical Landmarks},
	volume = {2019},
	number = {28.03.2019},
	year = {1999},
	publisher = {American Chemical Society},
	url = {http://www.acs.org/content/acs/en/education/whatischemistry/landmarks/julian.html}
}
