@article{Char1968, 
     author = "Char, J.", 
     doi = "10.1109/TCT.1968.1082817", 
     issn = "0018-9324", 
     journal = "IEEE Transactions on Circuit Theory", 
     link = "http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=1082817", 
     number = "3", 
     pages = "228--238", 
     title = "Generation of Trees, Two-Trees, and Storage of Master Forests", 
     uri = "http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=1082817", 
     volume = "15", 
     year = "1968", 
}

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