Krasnikov, S.V.
Quantum Stability of the Time Machine
Physical Review D, Vol.54, Nr.12, 1996, pp.7322-7327
Krasnikov, S.V.
A Singularity free WEC respecting Time Machine
Classical and Quantum Gravity, Vol.15,1998, pp. 977-1003
Kriele,M.
Causality Violations and Causality
General Relativity and Gravitation, Vol.22, 1990, 619-623
Kriele, M.:
The Structure of Chronology Violating Sets with Compact Closure
Classical and Quantum Gravity, Vol.6 1989 , 1606-1611
Kugel, Wilfried:
Time Travel in the Gödel Universe and its Implications for Parapsychology.
A Theoretical Approach
Vortragsmanuskript, Euro-PA-Convention, Clos Notre Dame. 1992, unpublished
