CDC:10.2807/1560-7917.ES.2016.21.1.30101
CDC:10.2807/1560-7917.ES.2016.21.10.30160
CDC:10.2807/1560-7917.ES.2016.21.20.30234
CDC:10.2807/1560-7917.ES.2016.21.38.30345
CDC:10.2807/1560-7917.ES.2016.21.40.30366
CDC:10.2807/1560-7917.ES.2017.22.9.30477