Can the states of the W-class be suitable for teleportation
  Entangled states of the W-class are considered as a quantum channel for teleportation or the states to be sent. The protocols have been found by unitary transformation of the schemes, based on the multiuser GHZ channel. The main feature of the W-quantum channels is a set of non-local operators, that allow receivers recovering unknown state. 
V.N. Gorbachev, A.I. Trubilko, A.A. Rodichkina