Baccolini, Graziano; Boga, Carla; Mazzacurati, Marzia; Sangirardi, Federico (2006-04-01). "High Atom-Economical One-Pot Synthesis of Secondary Phosphines and Their Borane Complexes Using Recycling Phosphorus Donor Reagent". Organic Letters. 8 (8): 1677–1680. doi:10.1021/ol060284d. ISSN1523-7060. PMID16597139.
Gottlieb HE; Kotlyar V; Nudelman A (October 1997). "NMR Chemical Shifts of Common Laboratory Solvents as Trace Impurities". J. Org. Chem. 62 (21): 7512–7515. doi:10.1021/jo971176v. PMID11671879.
espacenet.com
worldwide.espacenet.com
US patent 4110681, Donald C. Hofer; Vincent N. Kahwaty; Carl R. Kahwaty, "NMR field frequency lock system", issued 1978-08-29
Baccolini, Graziano; Boga, Carla; Mazzacurati, Marzia; Sangirardi, Federico (2006-04-01). "High Atom-Economical One-Pot Synthesis of Secondary Phosphines and Their Borane Complexes Using Recycling Phosphorus Donor Reagent". Organic Letters. 8 (8): 1677–1680. doi:10.1021/ol060284d. ISSN1523-7060. PMID16597139.
Gottlieb HE; Kotlyar V; Nudelman A (October 1997). "NMR Chemical Shifts of Common Laboratory Solvents as Trace Impurities". J. Org. Chem. 62 (21): 7512–7515. doi:10.1021/jo971176v. PMID11671879.