anchor.diff:  2017AJ....153...71F,kepler,exoplanets
   2017AJ....153...75K,k2,astrophysics
   2017AJ....153...82A,k2,exoplanets
  +2017AJ....153...94C,unrelated,
   2017ApJ...834....6S,unrelated,
   2017ApJ...834...55G,kepler,exoplanets
   2017ApJ...834...56T,unrelated,
  
positive.code: 2017MNRAS.tmp..145R,k2,astrophysics
  2017MNRAS.tmp..162K,k2,astrophysics
  2017MNRAS.tmp..186H,kepler,exoplanets
  2017NatAs...1E..13L,unrelated,
  2017NewA...52...65M,unrelated,
  2017NewA...52...96C,kepler,astrophysics
  2017PASA...34....2N,kepler,exoplanets
  2017PASJ...69...15S,kepler,astrophysics
  2017RAA....17....5W,kepler,astrophysics
  2017arXiv170100586D,k2,exoplanets
  2017arXiv170100588M,k2,exoplanets
  2017arXiv170100937D,kepler,astrophysics
  
negative.code: 2017ApJ...835L...6H,kepler,exoplanets
  2017ApJ...836....3G,kepler,astrophysics
  2017ApJ...836...41C,k2,astrophysics
  2017ApJ...836..143H,unrelated,
  2017ApJ...836..167D,k2,exoplanets
  2017ApJ...836L...9P,unrelated,
  2017ApJ...836L..19A,kepler,astrophysics
  