| article html file updated | 9 February 2020 00:47 CET | Update | https://www.mdpi.com/2079-9721/6/1/1 |
| article html file updated | 29 September 2019 09:18 CEST | Update | N/A |
| article html file updated | 2 May 2019 07:03 CEST | Update | N/A |
| article html file updated | 18 April 2019 04:56 CEST | Update | N/A |
| article html file updated | 28 March 2019 10:07 CET | Update | N/A |
| article html file updated | 27 March 2018 14:42 CEST | Update | N/A |
| article html file updated | 8 January 2018 06:16 CET | Update | N/A |
| article xml uploaded. | 8 January 2018 06:15 CET | Update | https://www.mdpi.com/2079-9721/6/1/1/xml |
| article pdf uploaded. | 8 January 2018 06:15 CET | Updated version of record | https://www.mdpi.com/2079-9721/6/1/1/pdf |
| article html file updated | 21 December 2017 13:28 CET | Original file | N/A |
| article xml uploaded. | 21 December 2017 13:27 CET | Original file | N/A |
| article pdf uploaded. | 21 December 2017 13:27 CET | Version of Record | https://www.mdpi.com/2079-9721/6/1/1/pdf-vor |
