| article html file updated | 7 February 2020 03:03 CET | Update | https://www.mdpi.com/1422-0067/17/1/66 |
| article html file updated | 6 May 2019 03:18 CEST | Update | N/A |
| article html file updated | 26 March 2019 17:45 CET | Original file | N/A |
| article pdf uploaded. | 26 January 2016 15:20 CET | Updated version of record | https://www.mdpi.com/1422-0067/17/1/66/pdf |
| article xml uploaded. | 26 January 2016 15:20 CET | Update | https://www.mdpi.com/1422-0067/17/1/66/xml |
| article pdf uploaded. | 5 January 2016 15:16 CET | Version of Record | https://www.mdpi.com/1422-0067/17/1/66/pdf-vor |
