Both Crawford et al. and “cutoff matrix” are mentioned in this academic paper: (emphasis added)

“When the C d matrix is employed in the integrated hybrid LCA, the results are presented as an expanded LCI for a specific product or process of impact in physical units. Integrated hLCA developed by Suh (2004) has been utilized and applied in previous research, including Bush et al. (2014), Crawford et al. (2018), Hawkins et al. (2007), Hawkins (2007), Ibn-Mohammed et al. (2016), and Wiedmann et al. (2011), but none of them have shown the explicit contribution of processes to the total hybrid LCIs...
However, the environmental impacts embedded with construction, operation maintenance, and various services in a beef-processing plant and other processes for manufacturing materials are not readily available through process-specific data and can be linked via the upstream and downstream cutoff matrix, instead of being treated independently in tiered hybrid LCA.“ - https://www.researchgate.net/publication/51198803_Applicatio...

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Note added at 2 hrs (2021-02-19 04:24:48 GMT)
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Please note that “integrated hybrid” is another point in common between the above quote and the original context.

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Note added at 10 hrs (2021-02-19 12:30:28 GMT)
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"Suh" é another point of convergence between the two sources. Make no mistake: this is the right translation!

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Note added at 12 hrs (2021-02-19 14:47:08 GMT)
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PS: I must have been half-asleep when I wrote the last comment. I meant to say: “Suh” IS another point of convergence....