* MARTIN J. The theories of Dr. Clara Jolles-Fonti of cancer were rejected by official Italian medicine. J Med (Oporto). 1954 Jan 2;23(571):95. PMID: 13142783
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* Linke A, Paul I. Clara Fonti's hematologic cancer diagnosis. Z Gesamte Inn Med. 1973 Feb 15;28(4):116-21.
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* Steinbart H., Studies on Clara Fonti's hematological diagnosis of cancer. Med Klin (München) 1956 Mar 2;51(9):352-3. (Mitarbeiterin von Fonti)
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* Krüger HU, Results of testing Fonti's hematological cancer diagnosis. Dtsch Gesundheitsw. 1956 Apr 12;11(15):487-90.
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* Stiller-Winkler R, Kuchciński R. Practical value of Bolen's and Fonti's tests in the oncologic diagnosis. Wiad Lek. 1966 Mar 15;19(6):481-6. (polnisch)