Notes on planar semimodular lattices. VII. Resections of planar   semimodular lattices
  A recent result of G. Cz\'edli and E.\,T. Schmidt gives a construction of slim (planar) semimodular lattices from planar distributive lattices by adding elements, adding "forks". We give a construction that accomplishes the same by deleting elements, by "resections". 
G\'abor Cz\'edli and George Gr\"atzer
math.RA