| article html file updated | 7 February 2020 09:03 CET | Update | https://www.mdpi.com/2304-8158/5/2/38 |
| article html file updated | 5 May 2019 15:08 CEST | Update | N/A |
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| article html file updated | 10 February 2017 03:46 CET | Update | N/A |
| article html file updated | 5 July 2016 06:37 CEST | Update | N/A |
| article html file updated | 20 May 2016 15:00 CEST | Original file | N/A |
| article xml uploaded. | 20 May 2016 14:58 CEST | Original file | https://www.mdpi.com/2304-8158/5/2/38/xml |
| article pdf uploaded. | 20 May 2016 14:58 CEST | Version of Record | https://www.mdpi.com/2304-8158/5/2/38/pdf |
