1. Achilles W (1991) Microphotometric quantification of crystal growth in gels for the study of calcium oxalate urolithiasis. Scanning Microsc 5: 1001?1017
2. Achilles W (1995) Gel crystallization methods. In: Rao PN, Kavanagh JP, Tiselius H-G (eds) Urolithiasis: consensus and controversies. Rao & Kavanagh: South Manchester University Hospital, Manchester, pp 75?81
3. Achilles W, Dekanic D, Burk M, Schalk C, Tucak A, Karner I (1991) Crystal growth of calcium oxalate in urine of stoneformers and normal controls. Urol Res 19: 159?164
4. Achilles W, Freitag R, Kiss B, Riedmiller H (1995) Quantification of crystal growth of calcium oxalate in gel and its modification of urinary constituents in a new flow model of crystallization. J Urol 154: 1552?1556
5. Achilles W, Joeckel U, Schaper A, Burk M, Riedmiller H (1995) In vitro formation of ?urinary stones?: generation of spherulites of calcium phosphate in gel and overgrowth with calcium oxalate using a new flow model of crystallization. Scanning Microsc 9: 577?586