1. Sequence of writings;Godown;J. Crim. Law, Criminol. Police Sci.,1963
2. Establishing the sequence of superimposed lines;Villanova;Int. Crim. Police Rev.,1969
3. Sequence of pencil strokes;Bradley;J. Crim. Law, Criminol. Police Sci.,1963
4. Development of SEM methods for solving forensic problems encountered in handwritten and printed documents;Oron,1974
5. Questioned Documents;Osborn,1952