CORESTA Meeting, Agronomy/Phytopathology, Cesme, 1989, P 05 Determination of Turkish tobacco varieties on the basis of seed examination AYTUG B.; KARPAT H. I.U. Orman Fakultesi Behçekoy, Istanbul, Turkey.
Bull. Spec. CORESTA Congress, Manila, 1980, p. 111, T03, ISSN.0525-6240 The SPA Filter COQ F. Société Job, Perpignan France The SPA filter is a new model of cigarette filter made from a fibrous sheet, cut in ribbons, and which is geometrically conformed as a rod. The structure of the fibrous sheet is made up of two different fibrous threads interspersed with each other :...