ในปีพ.ศ. 2499 สำนักพิมพ์ Munksgaard ได้ออกหนังสือActa Historicala scientariarum naturalium et Medicium จำนวน 290 หน้า (เล่มที่ 13) เกี่ยวกับNicole Oresme : Nicole Oresme og hans naturfilosofiske system: en undersogelse af hans skrift "Le livre du ciel et du monde"

In 1974 Pedersen collaborated with Pihl Mogens to write Early Physics and Astronomy: A Historical Introduction where they speculated about a Latin translation of Ptolemy's Almagest by Boethius that has been lost: "Had it been preserved, Latin astronomy would not have been compelled to start with a delay of more than 700 years." (page 188) Reviewer George Saliba commented, "One would prefer that such statements were not written, for they reflect on a vision of history that makes the development of science depend on such haphazard accidents,..."^[2]

Pedersen also published An Survey of the Almagest (1974).

Pedersen described his take on the history of European universities in The First Universities (1997),^[3] which received several scholarly reviews:

A favorable review was given by DR Jones: [Pedersen] "develops a complex explanation of the nature of the university, if not a theory of causation. His first universities are shaped by interweaving requirements of subject matter, teaching methods, legal and organizational means, and requirements of society and state."^[4] Ian P. Wei gave^[5] the book an enthusiastic review, calling it a "clear and lively work of synthesis." He wrote that the "main thrust of the book is to present medieval universities as institutions which can only be understood in relation to broader political and social developments. Particular emphasis is laid on the significance of the struggles between popes and emperors, and on Roman law. The book’s greatest strength is its extraordinary breadth of vision."

On the other hand, Ruth Karras wrote, "this book begins, not as a history of universities, but as a history of learning."^[6] Her opinion was that a "more balanced view for both medievalists and non-specialists" was provided by volume one of A History of the University in Europe (1992), edited by Hilde Ridder-Symoens. Marcia L. Colish described the book^[7] as "a superficial and shaky sketch of what universities actually taught. He emphasizes the organization, not the content of education." Colish finds Pedersen prone to "repeat and compound factual errors more recently given the decent burial they deserve." She suggests other, more reliable, authorities.

HEJ Cowdreyได้ให้การวิจารณ์ที่สมดุลว่า "บางทีบทที่มีคุณค่าที่สุดของหนังสือเล่มนี้คือบทที่เกี่ยวข้องกับมรดกคลาสสิกของการศึกษาระดับสูงในยุคกลางและการเปลี่ยนผ่านจากวิทยาศาสตร์โบราณไปสู่การเรียนรู้แบบเอกนิยม" ในทางกลับกัน Cowdrey ตั้งข้อสังเกตถึง "จำนวนข้อผิดพลาดทางข้อเท็จจริงที่น่าตกใจ" "มีการให้ความสนใจมากเกินไปกับหัวข้อที่ไม่สำคัญนัก" และ "แทบไม่มีการพิจารณาถึงงานวิชาการที่ตีพิมพ์ตั้งแต่ต้นทศวรรษ 1970 เลย" ^{[ 8 ]}