DOC:10.7589/2011-09-270
DOC:10.7589/2012-03-084
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DOC:10.7589/2012-09-226
DOC:10.7589/2013-03-053
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DOC:10.7589/2013-11-296
DOC:10.7589/2015-03-060
DOC:10.7589/2015-10-286
DOC:10.7589/2015-11-310