H. Garcke, J. Menzel, A. Pluda:
Willmore flow of planar networks
J. Differential Equations Vol. 266, N. 4, p. 2019-2051, 2019

H. Garcke, J. Menzel, A. Pluda:
Long Time Existence of Solutions to an Elastic Flow of Networks
Comm. Partial Differential Equations Vol. 45, N. 10, p. 1253-1305, 2020