| article html file updated | 9 February 2020 07:27 CET | Update | https://www.mdpi.com/2079-9721/6/1/18 |
| article html file updated | 1 May 2019 16:42 CEST | Update | N/A |
| article html file updated | 17 April 2019 16:06 CEST | Update | N/A |
| article html file updated | 29 March 2019 01:05 CET | Update | N/A |
| article html file updated | 27 March 2018 14:46 CEST | Update | N/A |
| article html file updated | 6 March 2018 03:33 CET | Update | N/A |
| article xml uploaded. | 6 March 2018 03:32 CET | Update | https://www.mdpi.com/2079-9721/6/1/18/xml |
| article pdf uploaded. | 6 March 2018 03:32 CET | Updated version of record | https://www.mdpi.com/2079-9721/6/1/18/pdf |
| article html file updated | 24 February 2018 07:27 CET | Original file | N/A |
| article xml uploaded. | 24 February 2018 07:25 CET | Original file | N/A |
| article pdf uploaded. | 24 February 2018 07:04 CET | Version of Record | https://www.mdpi.com/2079-9721/6/1/18/pdf-vor |