Amberlyst-15 as a Heterogeneous Reusable Catalyst for the Synthesis of α-Hydroxy Phosphonates in Water - Tajbakhsh, Mahmood; Heydari, Akbar; Khalilzadeh, Mohammad A; Lakouraj, Moslem M; Zamenian, Behi; Khaksar, Samad (Synlett, 2007)