| article html file updated | 8 February 2020 01:07 CET | Update | https://www.mdpi.com/1424-8220/17/3/549 |
| article html file updated | 23 September 2019 17:55 CEST | Update | - |
| article html file updated | 4 May 2019 07:27 CEST | Update | - |
| article html file updated | 31 March 2017 10:08 CEST | Update | - |
| article html file updated | 10 March 2017 12:51 CET | Original file | - |
| article xml uploaded. | 10 March 2017 12:50 CET | Original file | https://www.mdpi.com/1424-8220/17/3/549/xml |
| article pdf uploaded. | 10 March 2017 12:50 CET | Updated version of record | https://www.mdpi.com/1424-8220/17/3/549/pdf |
| article pdf uploaded. | 9 March 2017 10:52 CET | Version of Record | https://www.mdpi.com/1424-8220/17/3/549/pdf-vor |
