Deformation-free welding of stringer panels from titanium alloy VT20 - B. E. Paton; L. M. Lobanov; V. V. Lysak; V. V. Knysh; V. I. Pavlovskij; V. P. Prilutskij; A. N. Timoshenko; P. V. Goncharov; G. Tsjao (Automatic Welding, 2014)