1. in: “Encyclopedia of Polymer Science and Technology”, , , Eds., Interscience Publishers, New York 1986, v. 5, p. 801.
2. in: “Encyclopedia of Physical Science and Technology”, Ed., Academic Press Inc. Orlando 1987, v. 10, p. 462.
3. in: “Nonionic Surfactants”, , Eds., Marcel Dekker, Inc., New York 1966, v.. 1, p. 1.
4. in: “Nonionic Surfactants”, , Eds., Marcel Dekker, Inc. New York 1966, v. 1, p. 300.
5. , in: “Nonionic Surfactants”, , Eds., Marcel Dekker, Inc. New York 1966, v. 2, p. 794.