Zimmermann, Herbert Zimmermann Group, Max Planck Institute for Medical Research, Max Planck Society;
http://pubs.acs.org/doi/pdf/10.1021/cm047901h (Any fulltext)
https://dx.doi.org/10.1021/cm047901h (Any fulltext)
Baute, D., Zimmermann, H., Kababya, S., Vega, S., & Goldfarb, D. (2005). Synthesis of MCM-41 with a phosphonium template. Chemistry of Materials, 17(14), 3723-3727. doi:10.1021/cm047901h.