1. US 9.233.352 (2016); US 9.115.217 (2015 Akzo); US 8.907.136 (2004 Dow); US 8.722.944 (2014 Dow); US 8.314.045 (2012); US 5.792.891 (1998 CDTech); US 5.856.588 (1999 Huntsman); Kirk/Othmer‐1 Vol. 9 p.860;
2. Kirk/Othmer‐2 p.437;
3. Ullmann Vol.A10 p.23;
4. Ertl/Knözinger/Schüth/Weitkamp Vol. 6 p.2864;
5. Selective O-alkylation of cresols with methanol: catalysis by Cs loaded silica, a solid base