Published in Madroño, in 1968, in volume 19, issue 5, pages 165-179

Created: 2016-02-15, modified: 2016-07-07

Published in American Fern Journal, in 1966, in volume 56, pages 113-119

Created: 2017-04-23, modified: 2017-04-23

Published in Zeitschrift für Säugetierkunde, in 1993, in volume 58, pages 129-136

Created: 2016-08-03, modified: 2016-08-03