Patent Citation Spectroscopy (PCS): Algorithmic retrieval of landmark patents. - Jordan A. Comins; Stephanie A. Carmack; Loet Leydesdorff (CoRR, 2017)

Patent citation spectroscopy (PCS): Online retrieval of landmark patents based on an algorithmic approach. - Jordan A. Comins; Stephanie A. Carmack; Loet Leydesdorff (J. Informetrics, 2018)