^ TcapmBi 4 ^`P%`M8@A.9pM898@l@M8-lMM8 P2T9peCCo 4 ^`B>C0,Cp C|CR  %4 ^`A>BP2@x>CCR }"i ^`HH0H} / 4.4.4.4 (6)B6SS*X,SS*Dm B + ^` X|ZHH3pZ$ڐE o5From the article "One Corona is Enough for the Euclidean Plane" by Doris Schattschneider and Nikolai Dolbilin, published in "Quasicrystals and Discrete Geometry," J. Patera, editor, The Fields Institute for Research in Mathematical Sciences Monograph Series, Vol. 10, AMS, Providence, RI, 1998, pp. 207-246. 6. http://forum.swarthmore.edu/dynamic/one-corona/998, pp. ^`X|U6HH3pU6"U 1 http://forum.swarthmore.edu/dynamic/one-corona/ " U6U7@"U|U7"U5` `!jP ^`X|ZHH3pZ#pE =Catalog of Isohedral Tilings by Symmetric Polygonal Tiles #EZ#ETdUUUUZ`Z#E"  ^`AQU`10x`0QCCE V ^`BQV0V CxCE  ^`C`0 CdCo <^ ^`B>C0,Cp CVCR  ^`B>C0,Cp CnC5  ^`A>BP2@x>CC5 .3a` ^`C`0 CCo    ^`k@@@@C|CRCCo?%  ^`jD D CCRC|CR? ^`B>C0,Cp CHC5 }  ^`k@@@@CVCRCdCo?wJ  ^`jD D C|CRCVCR?TY ^`CՀ`0 CCo K  ^`jD D CCRCCR?8=2z ^`A>BP2@x>CC5   ^`k@@@@CnC5C|CR?  ^`jD D CC5CnC5?3  ^`m |hЫ fh2 CCoCCR?3  ^`l |g bg2CCoCCo?@  ^`kՀ@@@@CVCCdCo? :  ^`jD D C|CCVC?  ^`B>C0,Cp CVC  K   ^`jD D CCCC? ,;  ^`kՀ@@@@CnCC|C?3  ^`m |hЫ fh2 CCoCC?   ^`k@@@@C|CCCo? %  ^`jD D CCC|C? > ^`B>C0,Cp C|C   % ^`A>BP2@x>CC &,  ^`jD D CCCnC?x\  ^`kՀ@@@@CVCCdB?  ^`jD D C|CCVC?Ku  ^`jD D CCCC?u  ^`kՀ@@@@CnC5C|C?x3u  ^`m |hЫ fh2 CBCC?x~3u  ^`l |g bg2CBCB?x Z  ^`k@@@@C|CCB?%u  ^`jD D CCC|C?0{  ^`kՀ@@@@C0CRC>Co?  ^`jD D CVCRC0CR?  ^`kՀ@@@@CHC5CVCR?5  ^`jD D CnC5CHC5?   ^`l |g bg2CCoCdCo?Eq`  ^`jD D CCRCCR?=  ^`jD D CC5CC5?EY  ^`m |hЫ fh2 CCoCCR?-Y  ^`l |g bg2CCoCCo?%0{  ^`m |hЫ fh2 CCRCC5? 1Q  ^`p2(LH`QͰQR@?CCC|CCVCCdCoCCoCCo$#  FK~ ^`C`0 CC $  ^`k@@@@C0CC>Co?.   ^`jD D CVCC0C?/ ,  ^`k@@@@CHCCVC?0 Eq   ^`jD D CCCC?3EY  ^`m |hЫ fh2 CCoCC?5 ,%  ^`m |hЫ fh2 CCCC?7&,=>L  ^`jD D CCCC?4&,  ^`jD D CnCCHC?1x  ^`k@@@@C0CC>B?.  ^`jD D CVCC0C?/\#  ^`k@@@@CHC5CVC?0x~ nF  ^`l |g bg2CBCdB?2EqZ  ^`jD D CCCC?3xEYu  ^`m |hЫ fh2 CBCC?5x-~YZ  ^`l |g bg2CBCB?6%Z  ^`m |hЫ fh2 CCCC5?7  ^`k@@@@C"C5C0CR?0A  ^`jD D CHC5C"C5?1;  ^`l |g bg2CdCoC>Co?27c  ^`jD D CC5CC5?4k  ^`m |hЫ fh2 CCoCCR?5S0{  ^`l |g bg2CCoCCo?67K  ^`m |hЫ fh2 CCRCC5?7 W  ^` p1 CF0  ?CC5CnC5CHC5CVCRCdCoCCoC|CRCCRCCoCCCCCCoCC5  $9 ,  ^`k@@@@C"CC0C?Jk  ^`m |hЫ fh2 CCoCC?N 7,K<  ^`m |hЫ fh2 CCCC?P&7,c  ^`jD D CCCC?M&,  ^`jD D CHCC"C?K  ^`k@@@@C"C5C0C?Jx~|  ^`l |g bg2CdBC>B?Lxku  ^`m |hЫ fh2 CBCC?NxS~u  ^`l |g bg2CBCB?O7Ku  ^`m |hЫ fh2 CCCC5?P]q  ^`m |hЫ fh2 CCRCC5?P ],qs  ^`m |hЫ fh2 CCCC?\]q  ^`m |hЫ fh2 CCCC5?\