| article html file updated | 8 February 2020 05:05 CET | Update | https://www.mdpi.com/1422-0067/18/5/981 |
| article html file updated | 24 September 2019 15:55 CEST | Update | - |
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| article html file updated | 1 June 2017 11:12 CEST | Update | - |
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| article html file updated | 5 May 2017 08:22 CEST | Original file | - |
| article xml uploaded. | 5 May 2017 08:20 CEST | Original file | https://www.mdpi.com/1422-0067/18/5/981/xml |
| article pdf uploaded. | 5 May 2017 08:20 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/5/981/pdf |
