| article html file updated | 9 February 2020 06:45 CET | Update | https://www.mdpi.com/2076-3921/7/2/30 |
| article html file updated | 30 September 2019 20:04 CEST | Update | N/A |
| article html file updated | 1 May 2019 18:10 CEST | Update | N/A |
| article html file updated | 17 April 2019 17:30 CEST | Update | N/A |
| article html file updated | 28 March 2019 23:35 CET | Update | N/A |
| article html file updated | 14 March 2018 08:22 CET | Update | N/A |
| article html file updated | 22 February 2018 10:32 CET | Update | N/A |
| article xml uploaded. | 22 February 2018 10:31 CET | Update | https://www.mdpi.com/2076-3921/7/2/30/xml |
| article pdf uploaded. | 22 February 2018 10:31 CET | Updated version of record | https://www.mdpi.com/2076-3921/7/2/30/pdf |
| article html file updated | 22 February 2018 09:40 CET | Original file | N/A |
| article xml uploaded. | 22 February 2018 09:38 CET | Update | N/A |
| article xml uploaded. | 22 February 2018 09:38 CET | Original file | N/A |
| article pdf uploaded. | 22 February 2018 09:38 CET | Updated version of record | https://www.mdpi.com/2076-3921/7/2/30/pdf-vor |
| article pdf uploaded. | 15 February 2018 12:58 CET | Version of Record | https://www.mdpi.com/2076-3921/7/2/30/pdf-vor |
