Cosmological solutions of Hořava-Witten theory
Physical Review D American Physical Society (APS) 60:8 (1999) 086001
Heterotic M-theory in five dimensions
Nuclear Physics B Elsevier 552:1-2 (1999) 246-290
Nonstandard embedding and five-branes in heterotic M theory
Physical Review D American Physical Society (APS) 59:10 (1999) 106005