Beschreibung  Ansprüche  Angeführte Verweise 

US4283424A   [0007] 
US5194271A   [0008] 
WO9400024A   [0009] 
EP0155760A   [0010] 

The Determination of Pore Volume and Area Distributions in Porous Substances; I. Computations from Nitrogen Isotherms   [0028] 
Recommendations for the characterization of porous solids   [0028]