| article html file updated | 11 February 2020 20:03 CET | Update | https://www.mdpi.com/2076-0752/8/1/31 |
| article html file updated | 26 April 2019 07:54 CEST | Update | - |
| article html file updated | 12 April 2019 03:25 CEST | Update | - |
| article html file updated | 4 April 2019 07:22 CEST | Update | - |
| article html file updated | 2 April 2019 11:51 CEST | Update | - |
| article html file updated | 5 March 2019 09:58 CET | Original file | - |
| article pdf uploaded. | 5 March 2019 09:56 CET | Version of Record | https://www.mdpi.com/2076-0752/8/1/31/pdf |
| article xml uploaded. | 5 March 2019 09:56 CET | Update | https://www.mdpi.com/2076-0752/8/1/31/xml |
| article xml file uploaded | 5 March 2019 09:56 CET | Original file | - |
