Update README.md

Author: subravvr

README.md

@@ -271,4 +271,14 @@ from raptor.api import write_vtk
 
 # 5. Write porosity field to .VTI
 write_vtk(grid.origin, grid.resolution, porosity, "rve.vti")
+```
+## References
+The melt pool measurements in the examples are scans performed in Ti6Al4V from the following study:
+* Miner, Justin; Narra, Sneha Prabha (2024). Dataset of Melt Pool Variability Measurements for Powder Bed Fusion - Laser Beam of Ti-6Al-4V. Carnegie Mellon University. Dataset. https://doi.org/10.1184/R1/25696293.v1
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 ```