| article html file updated | 9 February 2020 19:20 CET | Update | https://www.mdpi.com/2076-3271/6/2/42 |
| article html file updated | 4 October 2019 00:55 CEST | Update | N/A |
| article html file updated | 30 April 2019 15:59 CEST | Update | N/A |
| article html file updated | 16 April 2019 16:29 CEST | Update | N/A |
| article html file updated | 30 March 2019 05:20 CET | Update | N/A |
| article html file updated | 28 May 2018 15:05 CEST | Original file | N/A |
| article pdf uploaded. | 28 May 2018 15:04 CEST | Version of Record | https://www.mdpi.com/2076-3271/6/2/42/pdf |
| article xml uploaded. | 28 May 2018 15:04 CEST | Update | https://www.mdpi.com/2076-3271/6/2/42/xml |
| article xml file uploaded | 28 May 2018 15:04 CEST | Original file | N/A |