| article html file updated | 9 February 2020 11:13 CET | Update | https://www.mdpi.com/2076-3921/7/4/48 |
| article html file updated | 1 October 2019 23:13 CEST | Update | N/A |
| article html file updated | 1 May 2019 08:48 CEST | Update | N/A |
| article html file updated | 17 April 2019 08:43 CEST | Update | N/A |
| article html file updated | 29 March 2019 09:43 CET | Update | N/A |
| article html file updated | 1 May 2018 10:21 CEST | Update | N/A |
| article html file updated | 26 March 2018 11:06 CEST | Update | N/A |
| article xml uploaded. | 26 March 2018 11:05 CEST | Update | https://www.mdpi.com/2076-3921/7/4/48/xml |
| article pdf uploaded. | 26 March 2018 11:05 CEST | Updated version of record | https://www.mdpi.com/2076-3921/7/4/48/pdf |
| article html file updated | 26 March 2018 11:04 CEST | Original file | N/A |
| article pdf uploaded. | 26 March 2018 11:03 CEST | Updated version of record | https://www.mdpi.com/2076-3921/7/4/48/pdf-vor |
| article pdf uploaded. | 25 March 2018 12:37 CEST | Version of Record | https://www.mdpi.com/2076-3921/7/4/48/pdf-vor |