The String Model of Gravity
  The string model of gravitational force is proposed where the string forms the mediation of the gravitational interaction between two gravitating bodies. It reproduces the Newtonian results in the first-order approximation and it predicts in the higher-oder approximations the existence of oscillations of the gravitational field between two massive bodies. It can be easily generalized to the two-body interaction in particle physics. 
Miroslav Pardy (Department of Theoretical Physics and Astrophysics,   Masaryk University, Czech Republic)