Alexander Rich Dies at 90; Confirmed DNA’s Double Helix – NYTimes.com
Wednesday, May 13th, 2015[After a long career] Alexander Rich Dies at 90; Confirmed #DNA’s Double Helix
http://www.nytimes.com/2015/05/06/us/alexander-rich-dies-at-90-confirmed-dnas-double-helix.html Helped unravel Z-DNA & RNA structure