| article html file updated | 7 February 2020 02:34 CET | Update | https://www.mdpi.com/1660-4601/13/1/63 |
| article html file updated | 6 May 2019 04:17 CEST | Update | N/A |
| article html file updated | 26 March 2019 17:01 CET | Original file | N/A |
| article pdf uploaded. | 22 December 2015 18:37 CET | Updated version of record | https://www.mdpi.com/1660-4601/13/1/63/pdf |
| article pdf uploaded. | 22 December 2015 17:03 CET | Updated version of record | N/A |
| article xml uploaded. | 22 December 2015 17:03 CET | Original file | https://www.mdpi.com/1660-4601/13/1/63/xml |
| article pdf uploaded. | 22 December 2015 16:38 CET | Version of Record | N/A |
