Ciardullo, R., Bond, H.E., Sipior, M.S., Fullton, L.K., Zhang, C.-Y., & Schaefer, K.G. 1999, ``A Hubble Space Telescope Survey for Resolved Companions of Planetary-Nebula Nuclei,'' A.J., 118, 488. [ADS - Abstract and Full Paper]

Bond, H.E., & Ciardullo, R. 1999, ``Distance to the Planetary Nebula NGC 246 from the Resolved Companion of Its Central Star,'' Pub. A.S.P., 111, 217. [ADS - Abstract and Full Paper]

Ciardullo, R., & Bond, H.E. 1996, ``A Survey for Pulsations in O VI Nuclei of Planetary Nebulae,'' A. J., 111, 2332. [ADS - Abstract and Full Paper]

Bond, H.E., Ciardullo, R., & Meakes, M.G. 1992, ``Close-Binary Nuclei of Planetary Nebulae,'' in I.A.U. Symposium #151, Evolutionary Processes in Interacting Binary Stars, ed. Y. Kondo et al. (Dordrecht: Reidel), p. 517. [abstract]

Bond, H.E., Kawaler, S.D., Ciardullo, R., Stover, R., Kuroda, T., Ishida, T., Ono, T., Tamura, S., Malasan, H., Yamasaki, A., Hashimoto, O., Kambe, E., Takeuti, M., Kato, T., Kato, M., Chen, J.-S., Leibowitz, E.M., Roth, M.M.., Soffner, T., & Mitsch, W. 1996, ``Asteroseismological Observations of the Central Star of the Planetary Nebulae NGC 1501,'' A. J., 112, 2699. [abstract] or [ADS - Full Paper]

Handler, G., Mendez, R.H., Medupe, R., Costero, R., Birch, P.V., Alvarez, M., Sullivan, D.J., Kurtz, D.W., Herrero, A., Guerrero, M.A., Ciardullo, R., \& Breger, M. 1997, ``Variable Central Stars of Young Planetary Nebulae I. Photometric Multisite Observations of IC 418,'' A & A, 320, 125. [ADS - Abstract and Full Paper]

Bond, H.E., Ciardullo, R., & Kawaler, S.D. 1993, ``Asteroseismology of Planetary Nebula Nuclei,'' Acta Astr., 43, 425. [ADS - Abstract]