Resource at https://doi.org/
https://doi.org/10.2737/RDS-2018-0002

Resource at https://doi.org/
https://doi.org/10.6073/pasta/6e9348a1c691c10271c9373bd31da67f

Resource at https://doi.org/
https://doi.org/10.6073/pasta/75646a3bd41ba3219d0e578e8374eef7