1 R. Levy: Types of Filtration.- 2 T. Meltzer: Modus of Filtration.- 3 O.W. Reif: Microfiltration Membranes: Characteristics and Manufacturing.- 4 M. Jornitz: Filter Constructions and Design.- 5 R. Madsen: Filter Validation.- 6 M. Jornitz: Integrity Testing.-
