Carbon/titanium multilayers as soft-x-ray mirrors for the water window
H.-J. Stock, G. Haindl, F. Hamelmann, D. Menke, O. Wehmeyer, U. Kleineberg, U. Heinzmann, P. Bulicke, D. Fuchs, G. Ulm, Applied Optics 37 (1998).

Carbon buffer layers for smoothing superpolished glass surfaces as substrates for molybdenum/silicon multilayer soft-x-ray mirrors
H.-J. Stock, F. Hamelmann, U. Kleineberg, D. Menke, B. Schmiedeskamp, K. Osterried, K.F. Heidemann, U. Heinzmann, Applied Optics 36 (1997) 1650–1654.