1. Quagliotto PL, Montoneri E, Tambone F, Adani F, Gobetto R, Viscardi G (2006) Chemicals from wastes: compost-derived humic acid-like matter as surfactant. Environ Sci Technol 40:1686–1692 and references therein
2. Montoneri E, Boffa V, Quagliotto PL, Mendichi R, Chierotti MR, Gobetto R, Medana C (2008) Humic acid-like matter isolated from green urban wastes. Part I: structure and surfactant properties. Bioresources 3:123–141
3. Montoneri E, Savarino P, Bottigliengo S, Musso G, Boffa V, Bianco Prevot A, Fabbri D, Pramauro E (2008) Humic acid-like matter isolated from green urban wastes. Part II: performance in chemical and environmental technologies. Bioresources 3:217–233
4. Showell MS (2006) In: Showell MS (ed) Introduction to detergents, Handbook of detergents. Part D: Formulation. Taylor & Francis, Boca Raton, Fl (USA)
5. Yangxin Y, Jin Z, Bayly AE (2008) Development of surfactants and builders in detergent formulations. Chin J Chem Eng 16(4):517–527