VIRKAJŽRVI, Ilkka Feasibility of continuous main fermentation of beer using immobilized yeast Ilkka Virkaj„rvi - Espoo Technical Research Centre of Finland 2001 - 139 p.; 25 cm - VTT Publications\\VTT, Espoo\ 430 . ISBN: 951-38-5840-5 Source: C-219773 Universal Decimal Class. No.: 663.4(043)