– “A 5 Inch Unitron Refractor Telescope”, John Siple, Rose City Astronomer Newsletter, September 2005; page 8; http://www.rosecityastronomers.org/news/2005/2005_09.pdf
– “A Norwegian Observatory with sliding roof sections”, Sky and Telescope, Volume 47, Number 2, February 1974: Describes Carsten Deberitz and his 5 Inch Unitron Model 530
– Amateur Telescope Making Advertisements: http://www.handprint.com/ASTRO/atm.html
– Bosscha Observatory, West Java, Indonesia, 4 Inch Unitron: http://en.wikipedia.org/wiki/Bosscha_Observatory
– Camera: Pointers on Photographing the Lunar Eclipse (Ed Mostowicz, Unitron Instrucments): http://www.nytimes.com/1982/07/04/arts/camera-pointers-on-photographing-the-lunar-eclipse.html
– “Classic Telescopes”, Neil English: http://books.google.com/books?id=MpWrx9kJwS0C&pg=PA152&lpg=PA152&dq=nihon+seiko+telescopes&source=bl&ots=wOoedMSPCR&sig=Bn-OHJ0V6AG_Bjk4pNO8Q1vHcF4&hl=en&sa=X&ei=x2YdVJGsGNXCsASu-YLgDw&ved=0CFIQ6AEwCA#v=onepage&q=nihon%20seiko%20telescopes&f=false
– College of San Mateo, California Observatory, 4″ Unitron: http://collegeofsanmateo.edu/astronomy/observatory.asp
– Custer Institute and Observatory, 4″ Unitron: http://www.custerobservatory.org/equip.html
– Dave Trott’s Website: http://davetrott.com/category/unitron-telescope/
– DAX Observatory, France, 5″ Unitron: http://www.astrosurf.com/obsdax/us/home_e.htm
– Dutch Polarex Website: http://home.solcon.nl/e.fledderus/historisch/Historisch-site/polarex/polarex.html
– Ege University Observatory, Izmir, Turkey past 15cm Unitron: http://en.wikipedia.org/wiki/Ege_University_Observatory
– “Five Great Telescopes That Changed Amateur Astronomy”: http://oneminuteastronomer.com/918/5-great-telescopes/
– “Four Inch Unitron on the Dennis the Menace Show”: http://astronomer.proboards.com/thread/4294/4-unitron-on-dennis-menace
– The History of the Telescope and Binoculars, John Abrahams: http://home.europa.com/~telscope/binotele.htm
– Len Merak’s Unitron Home Page: http://lenmarekastronomy.com/UnitronPage.htm
– “Refractive telscope Polarex”: http://www.hasi.gr/instruments/ast18
– “A Lunar Gallery -VI”, 5 Inch Unitron, John Siple, Rosette Gazette, April 2008, pgs 3-5: http://www.rosecityastronomers.org/news/2008/2008_04.pdf
– Messier Album: https://theyoungastronomer.wordpress.com/tag/mallas/
– Nielsen Observatory, Ohio, 4″ Unitron: http://observatoriesofohio.org/nielsen-observatory/
– “Nights of Future Passed”: http://www.philharrington.net/old.htm
_ Ohlsson observatory, 5″ Meridian/Polarex: http://astronet.se/wiki/index.php/VirgoLight
– Polamar College Observatory, 4″ Unitron: http://www.palomar.edu/astronomy/Astronomy/observatory.html
– Rafes Urban Astronomy Center’s 6 Inch Unitron Telescope, North Texas Daily, April 27, 2006: http://texashistory.unt.edu/ark:/67531/metapth145343/m1/1/zoom/;
– Rafes Urban Astronomy Center Observatory, 6″ Unitron: http://www.astronomy.unt.edu/ruac.html
– Rainwater Observatory, MS, 4″ Unitron: http://www.rainwaterobservatory.org/rainwater/index.cfm/information/
– “A Sampling of Telescopes for the Amateur Astronomer – Part 6″ Unitron Model 152 , John W. Siple, Rosette Gazette, April 2005, pgs 5-7: http://www.rosecityastronomers.org/news/2005/2005_04.pdf
– “A Sampling of Telescopes for the Amateur Astronomer – Part 12″ Unitron Model 114, John W. Siple, Rosette Gazette, December 2005: http://www.rosecityastronomers.org/news/2005/2005_12.pdf
_ “The Strolling Astronomy”, Vol 1, 1961: http://www.the1963aristarchusevents.com/JALPO_Vols__15-17.pdf
– Tiendesprong Observatory 5″ Polarex: http://www.tiendesprong.nl/
– Telescope Museum in Japan: http://www.telescope-museum.com/
– University of Connecticut Observatory – 6 Inch Unitron: http://www.phys.uconn.edu/observatory/
– University of Toronto – 6 Inch Unitron: http://www.astro.utoronto.ca/~utso/introduction.html
– University of Toronto – 15CM Unitron Finderscope: https://www.cis.rit.edu/people/faculty/ninkov/observations.html
DOCUMENTS:
– JALPO 2002: JALPO44-4
– Skyscrapers 75th Anniversary Review: