C. Zeng, L. Ma, Y. Tong:
"On the kinematic formula of the total mean curvature matrix";
Taiwanese Journal of Mathematics, 21 (2017), 1; S. 43 - 54.
http://dx.doi.org/10.11650/tjm.21.2017.7740Elektronische Version der Publikation:
https://projecteuclid.org/euclid.twjm/1498874556