1. K.SzafraniakSynthesis and properties of nonionic surfaceactive agents obtained from butylenen oxides Doctor's thesis Szczccin Poland1975.
2. J.SzymanowskiJ.MyszkowskiJ.NowickiandK.Szafra‐niak Colloid Plymer Sci. send to editor.
3. Polarity of butylene and ethylene oxides copolymers
4. J.Szymanowski Colloid Polymer. Sci. send to editor.
5. J.Szymanowski M.WisniewskiandM.Ludwig Colloid Polymer Sci. send to editor.