21. Her professional papers are held in the archives of the University of California, San Francisco. 22. He authored several hundred professional papers and several books. 23. Most of his professional papers have been donated to the University of Rhode Island Library. 24. Dr . Wendland published several professional papers in organic chemistry and chemistry education during his career. 25. This work, as well as the 1955 survey, provided the material for Warren's first professional papers . 26. Kantrowitz held 21 patents and wrote or co-authored more than 200 scientific and professional papers and articles. 27. A collection of her professional papers is held at the National Library of Medicine in Bethesda, Maryland. 28. Ratner's professional papers are archived at the John Paul II Library at Franciscan University of Steubenville, Ohio. 29. FEBUZ professors and assistants presented their scientific and professional papers in international conferences and scientific gatherings every year. 30. He has published numerous professional papers , book chapters, additional books, and earned a Distinguished Service award from his department.
