| article html file updated | 14 August 2026 15:04 CEST | Update | https://www.mdpi.com/1999-4907/8/6/204 |
| article html file updated | 8 February 2020 07:59 CET | Update | N/A |
| article html file updated | 3 May 2019 18:01 CEST | Update | N/A |
| article html file updated | 27 June 2017 11:19 CEST | Update | N/A |
| article html file updated | 13 June 2017 08:29 CEST | Update | N/A |
| article xml uploaded. | 13 June 2017 08:28 CEST | Update | https://www.mdpi.com/1999-4907/8/6/204/xml |
| article pdf uploaded. | 13 June 2017 08:28 CEST | Updated version of record | https://www.mdpi.com/1999-4907/8/6/204/pdf |
| article html file updated | 13 June 2017 06:08 CEST | Original file | N/A |
| article pdf uploaded. | 10 June 2017 12:54 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/6/204/pdf-vor |
