@article {Knolker:6 January 1997:0040-4020:91,
	author = "Knolker H.-J.",
	author = "Ecker A.",
	author = "Struwe P.",
	author = "Steinmeyer A.",
	author = "Muller G.",
	author = "Neef G.",
	title = "Enantioselective Synthesis of Calcitriol A-Ring Fragments",
	journal = "Tetrahedron",
	volume = "53",
	year = "6 January 1997",
	abstract = "",
	pages = "91-108(18)",
	url = "http://www.ingentaconnect.com/content/els/00404020/1997/00000053/00000001/art00955"
	doi = "doi:10.1016/S0040-4020(96)00955-6"
}