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References

1. Aczel, Amir D. (2001). The riddle of the compass: the invention that changed the world. Orlando: Harcourt Books. ISBN 978-0-15-600753-5. https://books.google.com/books?id=tFcNHc6lu24C&pg=PA125&dq=%22carta+pisana%22&cd=1#v=onepage&q=%22carta%20pisana%22. 
2. e.g. Caraci, 1959. More extreme claims were articulated earlier by Magnaghi (1909), who attempts to appropriate not only Dulcert, but Soler, Rosell and others, into the Italian pantheon.
3. Nordenskiöld (1896, 1897).
4. Winter (1958).
5. e.g. Pujades (2007); Campbell (1987; 2011)
6. Later Italian school maps began to include a compass rose, but placed a circumflex "hat" (^) as the northmark. Portuguese maps (from 1504) used a fleur-de-lis as the northmark. See Winter (1947:p.25)
7. Leo Bagrow, and R. A. Skelton (1964). History of Cartography. Watts. p. 65,66. https://books.google.com/books?id=OBeB4tDmJv8C&pg=PA65&lpg=PA65&dq=arab+cartographers+of+majorca&source=bl&ots=75gSEe08x5&sig=5xHQWXfMDVNB-xlwf0ligH42BEs&hl=en&ei=9XXYS7SPHoGkswOR0tSdBg&sa=X&oi=book_result&ct=result&resnum=2&ved=0CA0Q6AEwAQ#v=onepage&q=arab%20cartographers%20of%20majorca&f=false. Retrieved 2010-04-28. 
8. "Newberry Library". http://www.newberry.org/smith/slidesets/ss25.html. Retrieved 2010-04-28. 
9. "The Majorcan Cartographic School". 1964. http://www.world-mysteries.com/sar_10.htm#Majorcan. Retrieved 2010-04-28. 
10. Cecil Roth (1940). The Jewish Contribution To Civilization. Harper. pp. 69–72. https://books.google.com/books?id=2EkvyjWlA4gC&printsec=frontcover&dq=The+Jewish+Contribution+To+Civilisation&cd=1#v=onepage&q&f=false. Retrieved 2010-04-28. 
11. Clayton J. Drees (November 30, 2000). The Late Medieval Age of Crisis and Renewal, 1300-1500: A Biographical Dictionary (The Great Cultural Eras of the Western World). Greenwood. pp. 119–120. ISBN 0-313-30588-9. https://books.google.com/books?id=8jDfydG6ReAC&pg=PA119&dq=Abraham+Cresques&lr=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is=0&as_maxy_is=&as_brr=3&cd=3#v=onepage&q=Abraham%20Cresques&f=false. Retrieved 2010-04-28. 
12. "The Catalan Atlas". http://www.contemporarybalears.com/balears/index.php?section=blog&cmd=details&id=2&printview=1. Retrieved 2010-04-28. 
13. "The Catalan Atlas". http://www.henry-davis.com/MAPS/LMwebpages/235mono.html. Retrieved 2010-04-28. 
14. B. Barry Levy (1990). Planets, Potions, and Parchments: Scientifica Hebraica from the Dead Sea Scrolls to the Eighteenth Century. McGill-Queen's University Press. pp. 119–120. ISBN 978-0-7735-0791-3. https://books.google.com/books?id=YUxPTjLG3swC&pg=PA119. Retrieved 2010-04-28. 
15. Julia Brauch; Anna Lipphardt; Alexandra Nocke. Jewish topographies: visions of space, traditions of place. p. 185. https://books.google.com/books?id=GGDDCm-4VKkC&pg=PA185&lpg=PA185&dq=%22Gabriel+Vallsecha%22&source=bl&ots=L5kmlb8S8u&sig=yrStYJf3JwZyUnC1NAwB7RiSRvQ&hl=en&ei=r3zbS9LqHonMsQOoqNneBg&sa=X&oi=book_result&ct=result&resnum=5&ved=0CBIQ6AEwBA#v=onepage&q=%22Gabriel%20Vallsecha%22&f=false. Retrieved 2010-04-28.