20060215
www.iucr.org/iucr-top/cif/cif_core/index.html
www.usm.maine.edu/~rhodes/ModQual
http://ocw.mit.edu/OcwWeb/Biological-Engineering-Division/BE-442Molecular-St
ructure-of-Biological-MaterialsFall2002/LectureNotes/index.htm
www.matter.org.uk/matscicdrom/manual/xl.html
www.britneyspears.ac/physics/crystals/wcrystals.htm (britney! basics)
.: sarah 12:21 PM
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