Schäfer, A., Kalinowski, J., Simon, R., Seep-Feldhaus, A. H., & Pühler, A. (1990). High-frequency conjugal plasmid transfer from gram-negative Escherichia coli to various gram-positive coryneform bacteria.

Schäfer, A., J. Kalinowski, R. Simon, A H. Seep-Feldhaus, و A. Pühler. High-frequency Conjugal Plasmid Transfer From Gram-negative Escherichia Coli to Various Gram-positive Coryneform Bacteria. 1990.

Schäfer, A., et al. High-frequency Conjugal Plasmid Transfer From Gram-negative Escherichia Coli to Various Gram-positive Coryneform Bacteria. 1990.