displacement operator

Answers on a postcard BL Lac object bromodiphenhydramine camera taking characteristic cie 1976 l0 a0 b0 colour difference deferred post Dez Rūd-e kagiri Lodgepole Creek maize binder mizzen yard nuclear magnetic resonance standard (nmr standard) optional instalment payment philozoist Plantago rugelii post coordinate indexing rht Riemann Georg Friedrich Bernhard technology as ideology wellmann