See also: Racah's symbol[?], Racah's V-coefficient[?], Racah's W-coefficient[?], Racah-Wigner calculus[?]
External links
... the Japanese Panax ricinifolium, the Amur cork[?] (Philodendron amurense), the spindle tree[?] (Euonymus macropterus) and the vine (Vitis thunbergii) make thei ...