| article html file updated | 30 August 2025 06:22 CEST | Update | https://www.mdpi.com/2218-1997/4/9/91 |
| article html file updated | 17 July 2022 01:35 CEST | Update | N/A |
| article html file updated | 10 February 2020 07:39 CET | Update | N/A |
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| article html file updated | 29 April 2019 12:48 CEST | Update | N/A |
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| article html file updated | 25 September 2018 11:36 CEST | Update | N/A |
| article html file updated | 30 August 2018 15:49 CEST | Original file | N/A |
| article pdf uploaded. | 30 August 2018 15:48 CEST | Updated version of record | https://www.mdpi.com/2218-1997/4/9/91/pdf |
| article xml uploaded. | 30 August 2018 15:48 CEST | Update | https://www.mdpi.com/2218-1997/4/9/91/xml |
| article xml file uploaded | 30 August 2018 15:48 CEST | Update | N/A |
| article pdf uploaded. | 26 August 2018 11:37 CEST | Updated version of record | https://www.mdpi.com/2218-1997/4/9/91/pdf-vor |
| article pdf uploaded. | 26 August 2018 11:36 CEST | Updated version of record | https://www.mdpi.com/2218-1997/4/9/91/pdf-vor |
| article pdf uploaded. | 26 August 2018 11:31 CEST | Version of Record | https://www.mdpi.com/2218-1997/4/9/91/pdf-vor |
| article xml uploaded. | 26 August 2018 11:31 CEST | Update | N/A |
| article xml file uploaded | 26 August 2018 11:31 CEST | Original file | N/A |
