@article{Mayeda1965a, 
     author = "Mayeda, W. and Seshu, S.", 
     doi = "10.1109/TCT.1965.1082432", 
     issn = "0018-9324", 
     journal = "IEEE Transactions on Circuit Theory", 
     keyword = "Application software,Application specific integrated circuits,Circuit theory,Computer networks,Graph theory,Military computing,Transfer functions,Transformers,Tree graphs", 
     language = "English", 
     link = "http://ieeexplore.ieee.org/articleDetails.jsp?arnumber=1082432 http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=1082432", 
     month = "jun", 
     number = "2", 
     pages = "181--185", 
     publisher = "IEEE", 
     title = "Generation of Trees without Duplications", 
     uri = "http://ieeexplore.ieee.org/articleDetails.jsp?arnumber=1082432", 
     volume = "12", 
     year = "1965", 
}

Problems: 383