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The HST Primer for Cycle 21
was edited by Shireen Gonzaga, with Senior Technical Editor Susan Rose and contributions from many others at STScI, in particular
Alessandra Aloisi, Azalee Bostroem, Stefano Casertano, Ronald Downes, Rosa Diaz, Linda Dressel, Andrew Fox, Dorothy Fraquelli, Andrew Fruchter, Warren Hack, Svea Hernandez, Jason Kalirai, Deborah Kenny, Tim Kimball, Matt Lallo, John MacKenty, Cristina Oliveira, Larry Petro, Charles Proffitt, Tony Roman, Ken Sembach, Linda Smith, Denise Taylor, Leonardo Ubeda, William Workman, and Jim Younger.