modified Hellinger Reissner variational principle

modified H-R mixed variational principle

modified mixed variational principle

genetically modified modified food

modified modified frequency modulation

Modified modified Taohong Siwu Tang

adjoint variational principle

auxiliary variational principle

auxiliary variational principle technique

complementary variational principle

constrained variational Principle

coupled variational principle

differential and variational principle

differential variational principle

discrete variational principle

dual variational principle

Ekaland’s variational principle

Ekeland variational principle

Ekeland’s variational principle