| article html file updated | 6 February 2020 17:40 CET | Update | https://www.mdpi.com/1424-8220/15/4/8832 |
| article html file updated | 6 May 2019 21:56 CEST | Update | N/A |
| article html file updated | 26 March 2019 00:40 CET | Update | N/A |
| article html file updated | 21 August 2015 10:28 CEST | Update | N/A |
| article html file updated | 12 May 2015 12:29 CEST | Original file | N/A |
| article xml file uploaded | 12 May 2015 12:29 CEST | Original file | https://www.mdpi.com/1424-8220/15/4/8832/xml |
| article pdf uploaded. | 22 April 2015 11:54 CEST | Updated version of record | https://www.mdpi.com/1424-8220/15/4/8832/pdf |
| article pdf uploaded. | 15 April 2015 11:53 CEST | Version of Record | https://www.mdpi.com/1424-8220/15/4/8832/pdf-vor |
