1. EN 16572 (2015) Conservation of cultural heritage–Glossary of technical terms concerning mortars for masonry, renders and plasters used in cultural heritage. European Committee for Standardization (CEN)
2. Ramachandran VS (1995) Concrete admixtures handbook. Properties, science and technology. 2nd Edition, Noyes Publications
3. ACI 116R-90 Cement and concrete terminology, American Concrete Institute
4. BS EN 934–2:2009+A1:2012, Admixtures for concrete, mortar and grout part 2: concrete admixtures–Definitions, requirements, conformity, marking and labelling, European Committee for Standardization (CEN).
5. Sickels LB (1981) Organics vs. synthetics: their use as additives in mortars, Symposium on mortars, cements and grouts used in the conservation of historic buildings. 3-6.11.1981 Rome, p 25