Sergio Colacevich books & textbook
Soaring Magazine : The TAGAR Saga ; GLiders and TRansponders ; FES Updates; Senior Soaring Championship ; US Hall of Fame Biographies ( 2017 Journal)
Sergio Colacevich Renny Rossoni Bertha Ryan
Soaring Society of America /2017T Journal
Soaring Magazine : Joy of Volunteering for WGC Leszno 2014 ; Late Summer Flight ; Nephi Utah Region 9 Contest ; Thermal Camp at Air Sailing (2015 Journal)
Nick Kennedy Greg Swiderski Sergio Colacevich
Soaring Society of America /2015T Journal
