The istinction between Sinn and Bedeutung (usually but not always translated sense and reference, respectively) was an innovation of the German philosopher and mathematician Gottlob Frege in his 1892 paper Über Sinn und Bedeutung (On Sense and Reference), which is still widely read today. According to Frege, sense and reference are two different aspects of the meaning of at least some kinds of terms (Frege applied "Bedeutung" mainly to proper names and, to a lesser extent, sentences). Roughly, a term's reference is the object it refers to and its sense is the way in which it refers to that object.