Sawynok J, Dawborn JK (1975). "Plasma concentration and urinary excretion of guanidine derivatives in normal subjects and patients with renal failure". Clinical and Experimental Pharmacology & Physiology. 2 (1): 1–15. doi:10.1111/j.1440-1681.1975.tb02368.x. PMID1126056. S2CID41794868.
Göbel M, Klapötke TM (August 2007). "First structural characterization of guanidine, HN=C(NH(2))(2)". Chemical Communications. 43 (30): 3180–3182. doi:10.1039/B705100J. PMID17653381.
Yamada T, Liu X, Englert U, Yamane H, Dronskowski R (June 2009). "Solid-state structure of free base guanidine achieved at last". Chemistry: A European Journal. 15 (23): 5651–5655. doi:10.1002/chem.200900508. PMID19388036.
Sawynok J, Dawborn JK (1975). "Plasma concentration and urinary excretion of guanidine derivatives in normal subjects and patients with renal failure". Clinical and Experimental Pharmacology & Physiology. 2 (1): 1–15. doi:10.1111/j.1440-1681.1975.tb02368.x. PMID1126056. S2CID41794868.
Göbel M, Klapötke TM (August 2007). "First structural characterization of guanidine, HN=C(NH(2))(2)". Chemical Communications. 43 (30): 3180–3182. doi:10.1039/B705100J. PMID17653381.
Yamada T, Liu X, Englert U, Yamane H, Dronskowski R (June 2009). "Solid-state structure of free base guanidine achieved at last". Chemistry: A European Journal. 15 (23): 5651–5655. doi:10.1002/chem.200900508. PMID19388036.
Sawynok J, Dawborn JK (1975). "Plasma concentration and urinary excretion of guanidine derivatives in normal subjects and patients with renal failure". Clinical and Experimental Pharmacology & Physiology. 2 (1): 1–15. doi:10.1111/j.1440-1681.1975.tb02368.x. PMID1126056. S2CID41794868.