Citazione Stile APA (7a Edizione)

Bernal, D. A Dynamic stiffness formulation for the analysis of secondary systems. Earthquake engineering & structural dynamics.

Citazione stile Chigago Style (17a edizione)

Bernal, Dionisio. "A Dynamic Stiffness Formulation for the Analysis of Secondary Systems." Earthquake Engineering & Structural Dynamics .

Citatione MLA (9a ed.)

Bernal, Dionisio. "A Dynamic Stiffness Formulation for the Analysis of Secondary Systems." Earthquake Engineering & Structural Dynamics, .