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| article xml uploaded. | 6 February 2017 06:40 CET | Original file | https://www.mdpi.com/1422-0067/18/2/264/xml |
| article pdf uploaded. | 6 February 2017 06:40 CET | Updated version of record | https://www.mdpi.com/1422-0067/18/2/264/pdf |
| article pdf uploaded. | 29 January 2017 02:46 CET | Version of Record | https://www.mdpi.com/1422-0067/18/2/264/pdf-vor |
