The distribution of pore volume with respect to pore size; alternatively, it may be
defined by the related distribution of pore area with respect to pore size.
Source:
PAC, 1976, 46, 71
(Manual of Symbols and Terminology for Physicochemical Quantities and Units - Appendix
II. Definitions, Terminology and Symbols in Colloid and Surface Chemistry. Part II:
Heterogeneous Catalysis)
on page 79