| article html file updated | 7 February 2020 16:36 CET | Update | https://www.mdpi.com/2076-3921/5/4/37 |
| article html file updated | 22 September 2019 03:22 CEST | Update | N/A |
| article html file updated | 5 May 2019 01:10 CEST | Update | N/A |
| article html file updated | 23 June 2017 07:54 CEST | Update | N/A |
| article xml uploaded. | 23 June 2017 07:53 CEST | Update | https://www.mdpi.com/2076-3921/5/4/37/xml |
| article pdf uploaded. | 23 June 2017 07:53 CEST | Updated version of record | https://www.mdpi.com/2076-3921/5/4/37/pdf |
| article html file updated | 27 December 2016 11:55 CET | Update | N/A |
| article html file updated | 19 October 2016 11:46 CEST | Original file | N/A |
| article xml uploaded. | 19 October 2016 11:44 CEST | Original file | N/A |
| article pdf uploaded. | 19 October 2016 11:44 CEST | Version of Record | https://www.mdpi.com/2076-3921/5/4/37/pdf-vor |
