23 April 2010) ^ a b c "A Near-Infrared Atlas of Spiral Galaxies", Debra Meloy Elmegreen, "CH3. Discussion" (accessed 23 April 2010) ^ APOD, "NGC 4414:
Stalker”. abcnews.go.com (11 December 1996). 4 January 2016閲覧。 ^ a b J. Reid Meloy; Lorraine Sheridan; Jens Hoffmann (2008). Stalking, Threatening, and Attacking