https://pubs.rsc.org/en/Content/ArticleLanding/2017/DT/C6DT04094B
Coordination of bis(azol-1-yl)methane-based bisphosphines towards RuII, RhI, PdII and PtII:...
The coordination chemistry of bisphosphine ligands assembled on the five-membered heterocyclic platform of bis(azol-1-yl)methane viz.:...
https://www.gov.uk/aaib-reports/piper-pa-34-200-seneca-g-azol-14-july-2009
Piper PA-34-200 Seneca, G-AZOL, 14 July 2009 - GOV.UK