1. , , and , US Patent No. 4,916,246, (C07F13/00; 556/1), April 10, 1990,
2. IT 19236A/86, January 30, 1986.
3. , , and , in “Liver Imaging” ( and , Eds.), p. 384, Andover Medical Publishers, Reading, 1990.
4. , , and , “Second Special Topic Seminar on Contrast Agents in MR Imaging and Spectroscopy, September 26–28, 1990, Bordeaux, France,” in “New Development in Contrast Agent Research” ( and , Eds.), p. 83, European Magnetic Resonance Forum, Blonay, Switzerland.
5. , , , and , in “Book of Abstracts, Eighth Annual SMRM Meeting, Amsterdam 1989,” p. 350.