| article html file updated | 30 August 2025 01:51 CEST | Update | https://www.mdpi.com/2076-3271/5/4/30 |
| article html file updated | 16 July 2022 07:43 CEST | Update | N/A |
| article html file updated | 8 February 2020 22:46 CET | Update | N/A |
| article html file updated | 28 September 2019 21:29 CEST | Update | N/A |
| article html file updated | 2 May 2019 11:28 CEST | Update | N/A |
| article html file updated | 18 April 2019 09:05 CEST | Update | N/A |
| article html file updated | 28 November 2018 02:52 CET | Update | N/A |
| article xml uploaded. | 28 November 2018 02:51 CET | Update | https://www.mdpi.com/2076-3271/5/4/30/xml |
| article pdf uploaded. | 28 November 2018 02:51 CET | Updated version of record | https://www.mdpi.com/2076-3271/5/4/30/pdf |
| article html file updated | 14 March 2018 17:46 CET | Update | N/A |
| article html file updated | 1 December 2017 19:52 CET | Original file | N/A |
| article xml uploaded. | 1 December 2017 19:51 CET | Original file | N/A |
| article pdf uploaded. | 1 December 2017 19:51 CET | Updated version of record | https://www.mdpi.com/2076-3271/5/4/30/pdf-vor |
| article pdf uploaded. | 1 December 2017 12:15 CET | Version of Record | https://www.mdpi.com/2076-3271/5/4/30/pdf-vor |
