^The microscopic scale. Science Learning Hub. The University of Waikato. [31 March 2016]. (原始内容存档于2016-04-20).
^Reif, F. Fundamentals of Statistical and Thermal Physics International student edition. Boston: McGraw-Hill. 1965: 2. ISBN 007-051800-9. We shall call a system "microscopic (i.e., "small scale) if it is roughly of atomic dimensions or smaller (say of the order of 10 Å or less).