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4 Farber, K. N., "Review: Methylotrophic yeasts as factories for the production of foreign proteins" 11 : 1331-1344, 1995
5 Krogh, B. O., "Recombination proteins in yeast" 38 : 233-271, 2004
6 Cregg, J. M., "Recent advances in the expression of foreign genes in Pichia pastoris" 11 : 905-910, 1993
7 Stemmer, W. P, "Rapid evolution of a protein in vitro by DNA shuffling" 370 : 389-391, 1994
8 Jackel, C., "Protein design by directed evolution" 37 : 153-173, 2008
9 Guerra-Crespo, M., "Polyethylenimine improves the transfection efficiency of primary cultures of postmitotic rat fetal hypothalamic neurons" 127 : 179-192, 2003
10 Lee, J. H., "Polyethyleneimine-mediated gene delivery into rat pheochromocytoma PC-12 cells" 2 : 288-295, 2008
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