https://research.ibm.com/publications/variational-principle-for-magnetostatic-potential
Variational principle for magnetostatic potential for Mathematics and Computers in Simulation - IBM...
Variational principle for magnetostatic potential for Mathematics and Computers in Simulation by Yih-O Tu
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https://researchconnect.buffalo.edu/en/publications/mathematics-and-computers-in-simulation-foreword/
Mathematics and Computers in Simulation: Foreword - SUNY University at Buffalo
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