| article html file updated | 8 February 2020 13:35 CET | Update | https://www.mdpi.com/2306-5338/4/3/39 |
| article html file updated | 26 September 2019 13:19 CEST | Update | N/A |
| article html file updated | 3 May 2019 06:53 CEST | Update | N/A |
| article html file updated | 27 March 2019 20:55 CET | Update | N/A |
| article html file updated | 15 August 2017 15:07 CEST | Original file | N/A |
| article xml uploaded. | 15 August 2017 15:06 CEST | Original file | https://www.mdpi.com/2306-5338/4/3/39/xml |
| article pdf uploaded. | 15 August 2017 15:06 CEST | Updated version of record | https://www.mdpi.com/2306-5338/4/3/39/pdf |
| article pdf uploaded. | 15 August 2017 11:11 CEST | Version of Record | https://www.mdpi.com/2306-5338/4/3/39/pdf-vor |
