Marx UC, Klodt J, Meyer M, Gerlach H, Rösch P, Forssmann WG, Adermann K (September 1998). "One peptide, two topologies: structure and interconversion dynamics of human uroguanylin isomers". The Journal of Peptide Research. 52 (3): 229–40. doi:10.1111/j.1399-3011.1998.tb01480.x. PMID9774236.
Marx UC, Klodt J, Meyer M, Gerlach H, Rösch P, Forssmann WG, Adermann K (September 1998). "One peptide, two topologies: structure and interconversion dynamics of human uroguanylin isomers". The Journal of Peptide Research. 52 (3): 229–40. doi:10.1111/j.1399-3011.1998.tb01480.x. PMID9774236.