| article html file updated | 9 February 2020 04:33 CET | Update | https://www.mdpi.com/2076-3921/7/2/23 |
| article html file updated | 30 September 2019 06:46 CEST | Update | N/A |
| article html file updated | 1 May 2019 23:06 CEST | Update | N/A |
| article html file updated | 17 April 2019 21:44 CEST | Update | N/A |
| article html file updated | 28 March 2019 18:48 CET | Update | N/A |
| article html file updated | 14 March 2018 08:22 CET | Update | N/A |
| article html file updated | 27 January 2018 06:41 CET | Original file | N/A |
| article xml uploaded. | 27 January 2018 06:40 CET | Update | https://www.mdpi.com/2076-3921/7/2/23/xml |
| article xml uploaded. | 27 January 2018 06:40 CET | Update | N/A |
| article xml uploaded. | 27 January 2018 06:40 CET | Original file | N/A |
| article pdf uploaded. | 27 January 2018 06:40 CET | Version of Record | https://www.mdpi.com/2076-3921/7/2/23/pdf |
