| article html file updated | 8 February 2020 11:52 CET | Update | https://www.mdpi.com/2076-3921/6/3/59 |
| article html file updated | 26 September 2019 03:24 CEST | Update | N/A |
| article html file updated | 3 May 2019 10:37 CEST | Update | N/A |
| article html file updated | 27 March 2019 17:26 CET | Update | N/A |
| article html file updated | 30 September 2017 11:18 CEST | Update | N/A |
| article html file updated | 25 July 2017 04:00 CEST | Original file | N/A |
| article xml uploaded. | 25 July 2017 03:58 CEST | Original file | https://www.mdpi.com/2076-3921/6/3/59/xml |
| article pdf uploaded. | 25 July 2017 03:58 CEST | Updated version of record | https://www.mdpi.com/2076-3921/6/3/59/pdf |
| article pdf uploaded. | 24 July 2017 15:04 CEST | Version of Record | https://www.mdpi.com/2076-3921/6/3/59/pdf-vor |
