About the universality of free fall and the equivalence principle:

• On the universality of free fall, the equivalence principle and the gravitational redshift, American Journal of Physics 2013
• Relevance of the weak equivalence principle and experiments to test it: lessons from the past and improvements expected in space, Invited review paper in memory of Vladimir Braginsky 2018

• The theoretical bases of the GG experiment: Abatement of thermal noise due to internal damping in 2D oscillators with rapidly rotating test masses, Phys. Rev. Lett. 2011; Integration time in space experiments to test the equivalence principle, Phys. Rev. D 2014
• Overview of the GG experiment: GG: space test of the Weak Equivalence Priniple to 10^-17 and laboratory demonstrations, Class. Quantum Grav. focus issue on WEP, 2012; Phase A-2 study report of the GG mission in space, ASI 2009
• MICROSCOPE mission shows that space tests can be substantially improved: Testing the equivalence principle in space after the MICROSCOPE mission; Phys. Rev. D 2018; Watch slides of talk given at COSPAR, Pasadena 2018
• Cold atoms drop tests are not competitive: Systematic errors in high-precision gravity measurements by light-pulse atom interferometry on the ground and in space, Phys. Rev. Research, Rapid Communications 2020; Fundamental limitations to high-precision tests of the universality of free fall by dropping atoms, Phys. Rev. A 2016
• Tests with bulk masses can be designed within newtonian mechanics: Do general relativistic effects limit experiments to test the universality of free fall and the equivalence principle? Phys. Rev. D 2 016