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[1]
BERGER M, TO BE PUBLISHED
[2]
BERGER MS, 1969, J MATH MECH, V19, P13
[3]
GLUCK H, TO BE PUBLISHED
[4]
KAZDAN JL, TO BE PUBLISHED
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KOUTROUFIOTIS D, TO BE PUBLISHED
[6]
MOSER J, TO BE PUBLISHED
[7]
TRUDINGER NS, 1967, J MATH MECH, V17, P473