'''
Created on 02/08/2013

@author: Alejandra
'''
from sets import Set

class publication:

    def __init__(self):
	
	       
	self.idp    = ""
	self.title  = ""
	self.publisher= ""
	
	self.year   = ""
	self.type   = ""
	self.journal= ""
	self.author = Set([])
	self.citation = Set([])
	self.reference = Set([])
