1. in Multiple Bonds and Low Coordination in Phosphorus Chemistry, edited by and pp. 293-320, and references cited therein. Georg Thieme, Stuttgart (1990).
2. (a) and in NMR Basic Principles and Progress, edited by and pp. 171-176, 310-317, Vol. 18. Springer, Berlin (1981);
3. (b) and in Annu. Rep. NMR Spectrosc., edited by pp. 151, 525, 703-715, Academic Press, London, 18, 1 (1986);
4. Anwendung der 15N-NMR-Spektroskopie zur Charakterisierung reaktiver, koordinativ ungesättigter Zinn-, Bleiund Phosphor-Stickstoff-Verbindungen / Application of 15N-NMR Spectroscopy to the Characterization of Reactive, Coordinatively Unsaturated Tin-, Lead- and Phosphorus-Nitrogen Compounds