Rocky or Not, Here We Come: Revealing the Internal Structures of K2-21b+c Through Transit Timing
Published in 2015 by
K. Stevenson,
J. Bean,
D. Dragomir,
D. Fabrycky 
,
L. Kreidberg,
S. Mills,
E. Petigura
,
L. Kreidberg,
S. Mills,
E. Petigura
