| article html file updated | 14 August 2026 13:59 CEST | Update | https://www.mdpi.com/1999-4907/8/4/132 |
| article html file updated | 8 February 2020 04:05 CET | Update | N/A |
| article html file updated | 24 September 2019 10:37 CEST | Update | N/A |
| article html file updated | 4 May 2019 01:17 CEST | Update | N/A |
| article html file updated | 28 April 2017 06:44 CEST | Update | N/A |
| article html file updated | 24 April 2017 03:21 CEST | Original file | N/A |
| article xml uploaded. | 24 April 2017 03:20 CEST | Original file | https://www.mdpi.com/1999-4907/8/4/132/xml |
| article pdf uploaded. | 24 April 2017 03:20 CEST | Updated version of record | https://www.mdpi.com/1999-4907/8/4/132/pdf |
| article pdf uploaded. | 21 April 2017 12:01 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/4/132/pdf-vor |
