HERFURTH, Elke, Ulrike PILLING and Brigitte WITTMANN-LIEBOLD. "Microsequencing of Proteins and Peptides in the Knauer Sequencer with and without Covalent Attachment to Polyvinylidene Difluoride Membranes by the Wet-Phase Degradation Technique" Biological Chemistry Hoppe-Seyler, 372.1 (2009): 351-362. Retrieved 25 May. 2013, from doi:10.1515/bchm3.1991.372.1.351

HERFURTH, E., PILLING, U. & WITTMANN-LIEBOLD, B. (2009). Microsequencing of Proteins and Peptides in the Knauer Sequencer with and without Covalent Attachment to Polyvinylidene Difluoride Membranes by the Wet-Phase Degradation Technique. Biological Chemistry Hoppe-Seyler, 372(1), pp. 1-453. Retrieved 25 May. 2013, from doi:10.1515/bchm3.1991.372.1.351

HERFURTH, Elke, Ulrike PILLING and Brigitte WITTMANN-LIEBOLD. 2009. Microsequencing of Proteins and Peptides in the Knauer Sequencer with and without Covalent Attachment to Polyvinylidene Difluoride Membranes by the Wet-Phase Degradation Technique. Biological Chemistry Hoppe-Seyler. 372(1): 1-453. Retrieved 25 May. 2013, from doi:10.1515/bchm3.1991.372.1.351