Finding accelerometer location inside a phone

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Two more references for this important subject:

1.  Christopher Isaac Larnder, and Brian Larade
   "On the determination of accelerometer positions within host devices,"
   American Journal of Physics 87, 130 (2019); https://doi.org/10.1119/1.5082536
   
2. Chris Isaac Larnder
   "A Purely Geometrical Method of Locating a Smartphone Accelerometer,"
   The Physics Teacher 58, 52 (2020); https://doi.org/10.1119/1.5141974