@article {1629,
	title = {Synthesis of geminal bisphosphonates via organocatalyzed enantioselective Michael additions of cyclic ketones and 4-piperidones},
	journal = {Org. Biomol. Chem.},
	volume = {10},
	year = {2012},
	pages = {404-412},
	author = {A. M. Fa{\'\i}sca-Phillips and M. T. Barros}
}
