%ADumitrescu, A%AGhosh, A%AToth, C.%D2020%I %K %MOSTI ID: 10216027 %PMedium: X %TSparse Hop Spanners for Unit Disk Graphs %X Country unknown/Code not availablehttps://doi.org/10.4230/LIPIcs.ISAAC.2020.57OSTI-MSA