I'll second Nick's recommendations:
Bollinger's "Warriors and Wizards" is an excellent resource -- well researched and comprehensive. Specifies the Luftwaffe units involved in each action, but doesn't generally provide detail on individual crews or aircraft.
Balke's "Kampfgeschwader 100 'Wiking'" is a day-by-day account of the unit's activities, usually naming the commanding pilot and number of aircraft on each mission, and often including detailed loss information (e.g. pilot, aircraft type, unit code, and Wnr.)
Other worthwhile titles:
- "German Guided Missiles: Henschel Hs 293 and Ruhrstahl SD 1400X 'Fritz X'" by William Wolf (Merriam Press, 2006, 93 pages, ISBN: 978-1-4357-5826-1) Inexpensive softcover -- reads like a much-condensed version of Bollinger. Includes Allied Intelligence Reports on both missiles and some useful drawings.
- "41 Sekunden bis zum Einschlag: Als Bomberpilot im Kampfgeschwader 100 Wiking mit der geheimen Fernlenkbombe Fritz X" by Klaus Deumling (HEK Creativ Verlag, 2008, 110 pages, ISBN 978-3-932922-19-0) Describes training and operations with both the Hs 293 and Fritz X missiles.
Hope that helps,
Leon Venter