1        Adams and Rudnick (1977)
  2        Alexander et al. (1984)
  3        Allington-Smith (1982)
  4        Allington-Smith et al. (1982)
  5        Allington-Smith et al. (1985)
  6        Andernach et al. (1980)
  7        Ballarati et al. (1983)
  8        Barthel et al.(1985a)
  9        Barthel et al.(1985b)
 10        Barthel et al.(1986)
 11        Barthel et al.(1988)
 12        Baum et al. (1988)
 13        Becker et al.(1991)
 14        Binette et al. (1981)
 15        Blades et al. (1981)
 16        Branson et al. (1972)
 17        Bridle and Fomalont (1978)
 18        Bridle et al. (1976)
 19        Bridle et al. (1979)
 20        Burns (1978)
 21        Burns and Gregory (1982)
 22        Burns and Owen (1979)
 23        Burns et al. (1984)
 24        Cawthorne et al. (1986)
 25        Chambers et al. (1988)
 26        Christiansen et al. (1977)
 27        Colla et al. (1975b)
 28        Condon and Broderick (1988)
 29        Cordey (1987)
 30        Danziger and Goss (1983)
 31        Danziger et al. (1978)
 32        de Ruiter et al. (1986)
 33        de Young et al. (1979)
 34        Dixon (1970)
 35        Downes et al. (1986)
 36        Ekers and Kotanyi (1978)
 37        Ekers et al. (1978)
 38        Ekers et al. (1981)
 39        Ekers et al. (1983)
 40        Ekers et al. (1989)
 41        Fanti et al. (1975)
 42        Fanti et al. (1977)
 43        Fanti et al. (1978)
 44        Fanti et al. (1985)
 45        Fanti et al. (1986)
 46        Fanti et al. (1987)
 47        Feigelson et al. (1984)
 48        Feretti and Giovannini (1980)
 49        Feretti et al. (1983)
 50        Feretti et al. (1984)
 51        Fomalont (1971)
 52        Fomalont et al. (1980)
 53        Giovannini et al. (1988)
 54        Gower and Hutchings (1984)
 55        Gregorini et al. (1988)
 56        Grueff et al. (1981)
 57        Hargrave and McEllin (1975)
 58        Hewitt and Burbidge (1987)
 59        Hiltner and Roeser (1991)
 60        Hine (1979)
 61        Hinzen and Owen (1981)
 62        Hinzen et al. (1983)
 63        Hunstead et al. (1978)
 64        Hutchings et al. (1988)
 65        Jenkins and Scheuer (1976)
 66        Jenkins et al. (1977)
 67        Jaegers (1987)
 68        Jaegers et al. (1982)
 69        Kapahi (1981)
 70        Kapahi et al. (1973)
 71        Katgert-Merkelijn et al. (1980)
 72        Kellerman et al. (1969)
 73        Killeen et al. (1986)
 74        Kollgard et al. (1990)
 75        Kronberg and Strom (1977)
 76        Kuehr et al. (1981)
 77        Kuehr et al. (1987)
 78        Laing (1981a)
 79        Laing (1981b)
 80        Laing et al. (1983)
 81        Lawrence et al. (1986)
 82        Leahy and Williams (1984)
 83        Le Fevre and Hammer (1988)
 84        Longair (1975)
 85        Lonsdale and Morrison (1983)
 86        Lyne (1972)
 87        Machalski and Condon (1983)
 88        Machalski and Condon (1985)
 89        Machalski et al. (1982)
 90        Mantovani et al. (1990)
 91        Mayer (1979)
 92        McCarthy et al. (1989)
 93        McCarthy et al. (1990)
 94        Menon (1976)
 95        Miley and Hartsuijker (1978)
 96        Miller (1985)
 97        Morganti et al. (1987)
 98        Murdoch et al. (1983)
 99        Neff and Brown (1984)
100        Neff and Hutchings (1990)
101        Neff et al. (1989)
102        Owen and Puschell (1984)
103        Owen et al. (1978)
104        Owen et al. (1980)
105        Palumbo et al. (1982)
106        Parma et al. (1985)
107        Parma et al. (1986)
108        Peacock and Wall (1982)
109        Pearson et al. (1985)
110        Pedelty et al. (1989)
111        Perryman et al. (1984)
112        Pooley and Henbest (1974)
113        Pooley et al. (1987)
114        Potash and Wardle (1979)
115        Potash and Wardle (1980)
116        Righetti et al. (1988)
117        Riley and Pooley (1975)
118        Riley and Pooley (1978)
119        Riley et al. (1980)
120        Roger et al. (1973)
121        Rogora et al. (1986)
122        Rudnick and Adams (1979)
123        Rudnick and Owen (1977)
124        Saikia et al. (1984)
125        Saikia et al. (1986)
126        Saikia et al. (1987)
127        Saikia et al. (1989)
128        Saripalli et al. (1986)
129        Schilizzi and McAdam (1975)
130        Slee and Higgins (1975)
131        Slingo (1974)
132        Smith et al. (1977)
133        Spangler and Bridle (1982)
134        Spangler and Pogge (1984)
135        Spangler et al. (1984)
136        Spinrad et al. (1985)
137        Stannard and Neal (1977)
138        Strom and Conway (1985)
139        Strom et al. (1990)
140        Subrahmanya and Hunstead (1986)
141        Swarup et al. (1982)
142        Swarup et al. (1984)
143        Swarup et al. (1986)
144        Tsien (1982)
145        Ulvestad (1985)
146        Ulvestad and Antonucci (1988)
147        Valentijn (1979)
148        van Breugel and Jaegers (1982)
149        van Breugel and Willis (1981)
150        van Breugel et al. (1984)
151        van Breugel et al. (1985)
152        Vigotti et al. (1989)
153        Waggett et al. (1977)
154        Wall and Cole (1973)
155        White et al. (1980)
156        Whyborn et al. (1985)
157        Wilkinson et al. (1991)
158        Willis and Lynds (1978)
159        Willis and Strom (1978)
160        Wilson and Ulvestad (1987)
161        Wirth et al. (1982)
162        Wrobel (1984)
163        Wrobel and Heeschen (1984)