Grothendieck group of a ring

be at stake cockmunch de Klerk, F(rederik) W(illem) debt to asset ratio disintegration chain export duties eye animalcule method of analytic smoothing mitchelloides neoammonite neurobehavioral toxicology nsc-104800 pavic pseudoallergic ruminated run out of road single pass operation unacceptable contract vari-sweep technique XL (extra large)