| article html file updated | 15 August 2026 00:13 CEST | Update | https://www.mdpi.com/2077-1312/6/2/37 |
| article html file updated | 9 February 2020 12:44 CET | Update | N/A |
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| article html file updated | 6 April 2018 12:37 CEST | Original file | N/A |
| article xml uploaded. | 6 April 2018 12:35 CEST | Update | https://www.mdpi.com/2077-1312/6/2/37/xml |
| article pdf uploaded. | 6 April 2018 12:35 CEST | Updated version of record | https://www.mdpi.com/2077-1312/6/2/37/pdf |
| article pdf uploaded. | 5 April 2018 18:34 CEST | Version of Record | https://www.mdpi.com/2077-1312/6/2/37/pdf-vor |
