| article html file updated | 9 February 2020 02:45 CET | Update | https://www.mdpi.com/2077-0472/8/1/12 |
| article html file updated | 2 May 2019 02:52 CEST | Update | - |
| article html file updated | 18 April 2019 01:04 CEST | Update | - |
| article html file updated | 28 March 2019 14:51 CET | Update | - |
| article html file updated | 1 February 2018 09:57 CET | Update | - |
| article html file updated | 14 January 2018 09:28 CET | Original file | - |
| article xml uploaded. | 14 January 2018 09:27 CET | Original file | https://www.mdpi.com/2077-0472/8/1/12/xml |
| article pdf uploaded. | 14 January 2018 09:27 CET | Updated version of record | https://www.mdpi.com/2077-0472/8/1/12/pdf |
| article pdf uploaded. | 11 January 2018 19:16 CET | Version of Record | https://www.mdpi.com/2077-0472/8/1/12/pdf-vor |
