Ch. 1. Physico-chemical interaction between magnesium and rare earth metals -- Ch. 2. Decomposition of supersaturated solid solutions in Mg-RE alloys -- Ch. 3. Peculiarities of plastic deformation and recrystallisation in Mg-RE alloys -- Ch. 4. Effect of rare earth metals on mechanical and some other properties of magnesium -- Ch. 5. Commercial magnesium alloys with rare earth metals their compositions and properties -- Conclusions -- References -- Subject Index