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IEEE Transactions on Sustainable Energy > 2011 > 2 > 1 > 50 - 59
IET Renewable Power Generation > 2011 > 5 > 3 > 251 - 257
IEEE Transactions on Sustainable Energy > 2011 > 2 > 1 > 50 - 59
IET Renewable Power Generation > 2011 > 5 > 3 > 251 - 257