TY - JOUR A1 - Heinze, Thomas A1 - Heinze, Ute A1 - Grothe, Carsten A1 - Koetz, Joachim A1 - Lazik, Waldemar T1 - Starch derivatives of high degree of functionalization : 4. Homogeneous tritylation of starch an subsequent carboxymethylation Y1 - 2001 ER -