Lippmann,, Horst
Extremum and variational principles in mechanics / Horst Lippmann
Extremum and variational principles in mechanics / Horst Lippmann
. - New York : Springer-Verlag, cop. 1972
. - 238 p. : il. 24 cm
. - (Courses and lectures; 54)
3-211-81115-X
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